Pop up window not relative to main database window

Issue report by Henry Boyer

Product

FileMaker Pro

Version

12

Operating system version

Mac

Description of the issue

I can't come up with a solution or script steps to position pop up windows relative to the main database window' current position on my desktop. Wherever the main database window is on my desktop, my pop up windows can be "smart and follow the position relative to that location. Example: if my filemaker program is running on left side of my desktop, and if I have my pop up window to open in the middle of my main layout, then when I move my program to right side of my desktop, the pop window, should still open in the middle of my layout on the right side.

Steps to reproduce the problem

I tired to calculate my pop up window location relative to the main layout window's dimensions. I have no success in doing this, I am a beginner, I don't know if I am using the right method to do that action.