Unable to look at your app at the moment.
Suggest you check my article and example app Control Application Interface (isladogs.co.uk)
EDIT:
Just had a quick look - you ARE using my code but you have made a few important mistakes
1. Each object including the report should be Popup = Yes and Modal = No.
You currently have Modal = Yes which causes the interface to be visible
2. Each code module should start with these 2 lines:
Code:
Option Compare Database
Option Explicit
Add those lines where missing, then compile the code. There will be at least one error you need to fix
3. You don't need the module sys_HiddeElements_mdl as its duplicating code in my modDatabaseWindow
Once you've done all that, let us know if there are any further issues that you can't fix.
I would strongly recommend you try to understand what the code is actually doing