+EnterEveryBar doesn't draw MAfast ("editor-typed strategies already have indicators in SNAP after pre-backtest compilation")

-INEFFECTIVE flickers OnResize ChartControl:UserControlDoubleBuffered
+PREV flickers OnResize SliderCombo:UserControlDoubleBuffered, PanelFillSlider:PanelDoubleBuffered
+ChartControl keyboard doesn't move anything; RELATED Keys.Left lags on rightmost position
+1/2WORKS_BUT_ISSUES_OR_NOW_LOOKS_ILLOGICAL Allow ChartForms to be not only in Documents but also docked/floating as Toolbox windows anywhere (floating window position restored by DockContent on deserialization)
+use this.mainForm.GuiDataSnapshot.ChartSernoHasFocus to apply Sliders changed to (showing sliders for windowed ChartForm but on-click backtesting an active form from Documents)
TODO Slider for IndicatorParameter("Period", 5, 1, 11, 2) has 2-4-6-8 instead of 1-3-5-7
TODO PanelPrice.dragScroll lags on rightmost position
TODO first chart bar is #18 instead of #1
TODO ATR doesn't draw last 3 bars; last bar has NaN while -2 & -3 have (double) values != 0 in TooltipPrice
TODO sma(ATR) is DOUBLE, you show me INT in TooltipPrice
experiment with IndicatorAverageTrueRange.ctor(): base.ChartPanelType = ChartPanelType.PanelIndicatorSingle
TODO get rid of ScriptParameterAttribute, update my/ strategies from *Compiled
+Slider for IndicatorParameter("Period", 5, 1, 11, 2) has 2-4-6-8 instead of 1-3-5-7
... for got from mono-fresh
reverted back to DockPanel_ActiveDocumentChanged because

1) I don't need deactivation events; changing DockPanel is one-time effort (in sight of Cocoa and GTK# UIs)
2) Sliders didn't remember RightClick->All Sliders->BorderOn/Off; probably focus lose/gain duplication on rightClick;
+Indicator.Rendering.cs:checkBandValue() ATR doesn't draw last 3 bars

TODO UNMESS DataSeries.StreamingValue: ATR last bar has NaN while -2 & -3 have (double) values != 0 in TooltipPrice
TODO ChartControl.DynamicProperties.LeftBar inaccuracy: first chart bar is #18 instead of #1
TODO PanelPrice.dragScroll lags on rightmost position
TODO sma(ATR) is DOUBLE, you show me INT in TooltipPrice
experiment with IndicatorAverageTrueRange.ctor(): base.ChartPanelType = ChartPanelType.PanelIndicatorSingle
TODO get rid of ScriptParameterAttribute, update my/ strategies from *Compiled