Yeah don't use them with Subpanels. Either go all out with the Windows API abandoning subpanels, or use subpanels exclusively. I threw a quick example of the Windows only route here showing a somewhat unlimited way of spawning windows. As for a subpanel only route I have the Image Grid, which is subpanels of subpanels.
You might want to investigate REx - Remote Export Framework for LV built EXE
https://lavag.org/topic/17024-rex-remote-export-framework-and-remote-events/
Although it can't give you a direct button click, it does the next best (possibly better) thing, giving you the ability to call a method externally that fires a LV event internal to the EXE.
Good luck,
~,~ The Captain
enableSecretPopups - I put this token into LabVIEW 2011 for Silver control development, as a quick-and-dirty way to make low-level control edits. I've been giving it out to people on a very limited basis, but I guess since it's out here I'll widen the audience.
I show a screenshot of the new menu items in https://decibel.ni.com/content/docs/DOC-17431
Once this token is enabled, you'll be able to see the settings on parts of the Silver controls to get an idea what they do. eg "Left Move" means the part will move left when its "master" part changes size via moving its left edge. "Left Grow" means the part will scale in that situation. Setting both the left and right move options will make the part stay centered.
There are clearly combinations that don't make any sense and I suspect LabVIEW will behave badly if you use them.
I recommend that you disable the token when you're not using the Control Editor, because it also enables other menu items that are not ready for prime time and you might use them later without realizing they're only there because of this INI token.