I think I’m wanting the impossible (not for the first time...), but thought I’d check.
In a single-window solution, I have a layout, based on Table A. On it, I have a popover button. In the popover, I want to use a variety of global fields (dates and times), from the Globals table, to check the availability of resources. To do this, once I’ve gathered the values into the globals, I need to go to another layout (based on the Globals table), do the business, and come back to [original layout], where the popover will be as I left it, now listing the available resources. But unfortunately, the first Go To Layout  script step closes the popover.
Is there any way around this?