`TSynScrollOnEditLeftOptions`
pl	ro	KeepBorderDistance
pl	ro	KeepBorderDistancePercent
pl	ro	ScrollExtraColumns
pl	ro	ScrollExtraPercent
pl	ro	ScrollExtraMax

`TSynScrollOnEditOptions`
		KeepBorderDistance
		KeepBorderDistancePercent
		ScrollExtraColumns
		ScrollExtraPercent
		ScrollExtraMax