Thank you (again) for your timely responses David, I'll focus on #4 a bit (if thats OK)...
I've written MyAutoTextListForm that works for MyEditControl (class). MyAutoTextListForm behaves like VFP-9 Intellisense (a non-modal list-form) in most basic ways. It also behaves similar to the auto-text (non-modal list-form) property of text-controls.
Perhaps the VFP-9 AutoText property for Text-Controls is not modally affected as it probably works seamlessly with modal forms.
But MyAutoTextListForm is limited by my modal forms (namely mouse clicks). Through much trial and error I’ve managed some fairly tolerable workarounds where MyEditControl (class) within modal forms can respond well enough with MyAutoTextListForm.
Again thank you for any patient feedback which has helped my *incoherent* thoughts on modal form behavior.