This button instantly disables or enables BlackBird's auto trading.  More precisely, it enables or disables the Trade Signal input source.  (Trade Signals must be setup for auto trading to occur.)
When Disabled, this simply prevents BlackBird from acknowledging new trade signals and thus prevents placing new entry orders.  Any open, working, and pending orders will continue to be managed by BlackBird.  Also, Trailing Actions will continue to function.
To cancel an open or pending order use the Close button.

These buttons provide a quick way to disable auto trading in a certain direction. (Trade Signals must be setup for auto trading to occur.)
E.G. If you do not want BlackBird to take any short trades then click the Short Enabled button to disable it and short trade signals will be ignored.

This group of buttons allows the trader to manually place an entry order.  If a position is open and a button is pressed to submit an order in the opposite direction, the current open position will be automatically flattened and the trade reversed.  These buttons will submit the order(s) that are defined in Order Settings.

• Go Long & Go Short buttons submit entry order(s) according to your Order Set settings.  No setting is overridden or modified.
• Buy Ask & Sell Ask places a buy stop or sell limit order at the current Ask.  The entry order settings are temporarily modified so the entry can be placed at the Ask price.
• Buy Bid & Sell Bid places a buy limit or sell stop order at the current Bid.  The entry order settings are temporarily modified so the entry can be placed at the Bid price.

Gray/Disabled Buttons:
  If all button are gray/disabled that means no Order Set is defined in the Order Settings section.  And, thus BlackBird does not know what types of orders to submit.
  One side (either the Long or Short) of the buttons become disabled when a trade in that direction is active.  For example, if the Go Long button is pressed or an automated long trade is active the Long buttons become disabled.  This helps prevent accidentally opening to many contracts, and causing a margin call.  To scale-in more contracts use the Order Monitor panel » Scale In button (see below).
Note:  Not seeing an order flag on the chart does not mean a trade is not active.  If there are no order flags visible, then at least one order is in a Pending state.  The Info panel displays the state of a trade.  See the Info panel » Long/Short Pending section below for more info on pending orders.

Orders executed using these buttons will not affect other trades that were executed/placed by other trading tools or other means.  A strategy runs in its own memory space, as designed by NinjaTrader.  Therefore, BlackBird is unaware of other BlackBird strategies that are running or any other trades that may be open/active within the account.  This means the Manual Entry Buttons can not affect or override any other trades.  Each instance of BlackBird can only interact and affect its own executed orders.

The Close button will flatten all open positions and cancel all pending and working orders.  The button will only close positions placed by that instance of BlackBird.  It will not close positions placed by other instances of BlackBird.

NinjaTrader » Chart Trader/SuperDOM Close button:  Please note, the various NinjaTrader Close buttons will flatten all open positions for that instrument, and also disable any running strategy (i.e. Raven) on that instrument.  NinjaTrader’s explanation can be found in the Tips section of their ' How to run a NinjaScript strategy in a chart' page, and on this support forum page.

Tip:  If an error occurs and NinjaTrader loses tracking of live working orders and/or an open position, Raven will not be able to Close/Cancel its position and orders.  Should this occur use the Control Center » Positions tab to flatten and cancel any position and orders. 

The top section displays trade position information.
Upper Left:  This displays the number of contracts currently open, or Pending if an entry order is in a pending state.  The display turns green and uses the letter 'L' for a long position, or uses 'S' and is red for a short position.
Upper Right:  This shows the average entry price.

Lower Row:  This displays the unrealized PnL of open/active contracts.   Clicking on the PnL display area will toggle the display unit between Ticks, Percent, or Currency.  When BlackBird is flat the realized Net PnL, of real-time trades, is shown from when BlackBird was enabled or reloaded/re-started.  Anything that causes the chart to Reload, such as changing or adding an indicator, will cause the PnL to reset to zero.  This PnL amount comes from the Control Center » Strategies tab.  The two PnL displayed values will always match, because they are calculated by NinjaTrader.
If the chart gets reloaded, thus resetting the PnL amount, and you wish to see a daily PnL amount use the Performance panel.
Long/Short Pending: When this is displayed it means the order has not been submitted to the market yet, because an entry order is waiting/pending for other conditions to occur first.  This occurs when the entry order has Place After options in use.  Order flags will not be seen for pending orders.  Order flags are only shown when the entry order is submitted and live at the exchange (or in sim).

These buttons draw a diamond and dots on the chart, for every bar, to preview where the entry, profit target, and stop-loss would be initially placed. This does not show trailing behavior.

  The diamond represents the entry order price.

  The dots represents the profit target and stop-loss.  Note, the dot color matches the order color (set in the Order Options tab).

The Global Breakeven button moves all stop-losses to breakeven for this instance of BlackBird.  It does not move stop-losses for other instances of BlackBird.  Breakeven is the average entry price.

Click on the Global Auto Trail sliding switch to enable or disable order trailing for all orders.  All orders means the entry orders, profit targets, and stop-losses for this instance of BlackBird.  It does not affect orders from other instances of BlackBird.  Keep in mind, all order types can be programmed with trailing rules.
  The lock button on the right locks the trailing on or off for all orders.
E.G.  Normally moving a stop-loss will disable trailing rules tied to that stop-loss, because the user decided to override the trailing.  Setting the Global Auto Trail to On and locking it will prevent order trailing rules from becoming disabled when the user moves an order.  But, keep in mind if a stop-loss is moved the trailing rule will probably move it right back to where it was (provided the trailing rule is setup to keep repeating).

 The top of this area displays the order set's name.

The middle area displays each order's order price (if available) and the status.  When the order is live/active the price is displayed.  Order states include; Pending, Filled, Canceled, etc.
On top in blue is the entry order.  In the middle is the profit target (green).  On the bottom is the stop-loss (orange/red).
Changing an Order Price:  An order's price can be changed via this display.  Double clicking on the price will switch the price field to an edit mode, allowing the price to be changed.

This button enables or disables trailing for the individual order set.  Each order set has its own button.  The image to the right show one order set (order set A).  If you create a second order set (order set B) there will be a second button.  Click the image to see an example of two order sets (order set A & B).  The entry, profit target, and stop-loss orders can all have trailing rules.  This button enables or disables trailing for all of those order types.  Moving an order on the chart, that has trailing rules, will disable trailing for that order set, and the button will show Auto Trailing Off.  Moving an order that does not have trailing rules will not disable trailing.
  The lock button on the right locks the trailing on or off for that individual order set.

E.G.  If stop-loss for order B has trailing rules and you decide to move that stop-loss, then the trailing rules for stop-loss B are disabled.  Also note, that if profit target B has trailing rules then trailing for profit target B is disabled as well.  Trailing for order set B is disabled.  Clicking the Auto Trailing Off button will re-enable trailing again.
If stop-loss for order A is a fixed stop-loss (no trailing rules) and you move that stop-loss, the auto trailing is not disabled, because there are no trailing rules to disable.

Every Order Set has its own Breakeven button which will only move the stop-loss(es) in that particular order set.  This provides finer control over stop-loss management.
To move all stop-losses to breakeven use the Global Breakeven button on top.

The 'Scale In +' button will scale in (add more contracts) to the current position using the entry order type defined in that order set.
I.E.  If you use the Scale In button for order set B, and order set B is defined to place a Limit entry order at the Close -1 tick, then a new Limit order will be placed 1 tick from the current Close price.
Note, that only one order set can be displayed in that pane.  Thus, the latest order set will be the one displayed.  The status of the prior order sets will be available in the Control Center » Orders tab window.
The Scale In button will not open a new position when flat.  A position must already be open, or a limit/stop entry order must be working(waiting to be filled).

The − (minus) and + (plus) buttons changes the number of contracts for scaling in.  This overrides the number of contracts defined on the order set.

Total Net Profit: This statistic shows the profitability after subtracting losses.  The formula is Gross Profit - Gross Loss.
Note:  This may not match the Info Panel » PnL display or the Control Center » Strategies tab Realized PnL.  See the Info Panel section above for more info.

Profit Factor:  This statistic returns a ratio that measures how much more money is earned then lost.  A ratio above 1.0 is characteristic of more profits and less losses.  The formula is Gross Profit / Gross Loss.

High Watermark:  A High Watermark is the highest Net Profit value that was reached for the day.

High Watermark Stop:  This shows the Watermark Stop-loss value.  If the Net Profit drops below the Watermark Stop-loss value BlackBird will stop trading for the remainder of the day.  For more information please see Money Management » Daily Watermark » Stop Trading After.

Wins:  This statistic shows the total number of winning trades.

Losers:  This statistic shows the total number of losing trades.

Total Trades:  This statistic shows the total number of executed trades.

Percent Profitable:  This statistic returns the percentage of how many winning trades there are within the Total Trades.  A percentage above 50% means there are more winning trades than losers. The formula is Total Trades / Winning Trades.

Average Trade:  This statistic returns a value representing the average return of all trades.  The formula is Net Profit / Total Trades.

Average Win:  This statistic returns a value representing the average profit of all winning trades. The formula is Gross Profitable Trades / Wins.

Average Loss:  This statistic returns a value representing the average loss of all losing trades. The formula is Gross Losing Trades / Losers.

Avg Win / Avg Loss:  This statistic returns a ratio representing  a performance measure of profitability.  A value greater than 1.0 signifies winning trade profits are more than losing trade losses.  The formula is Average Win / Average Loss.