How to close with a button a Faceplate called by another

Hi everyone,

Everything is in the title. I'm working on a PC Runtime WInCC Unified program developpement.

I have some Faceplates inside and I have some questions without answers. 

I manage to open a Faceplate from another and the tags communication with the PLC is working well with both Faceplate.

The first is a small faceplate "FP_Axis_small" called three times in the screen because I have 3 motor axis to command (Axis X, Axis Y, Axis Z),  we can click on each to display another faceplate "FP_Axis_big" (to display more info and to access command : like Jog, Start, Error ID, ..).

I tried to found solution but afters some hours I'm coming to ask if someone knows about those points:

- in the FP_Axis_big" I would like to put a close button (instead of the popup close "X"), I tried to do this like the Tips&Tricks document (chapter 5.5.4) but it's different here because the popup is called by a button in the screen and mine si called by the first popup ("FP_Axis_small).

- second things, when I click on the object to display the popup is "FP_Axis_big" from the Faceplate "FP_Axis_small", the popup opens but if I clik again I can have the same "FP_Axis_big".

I hope it's clear, and thanks in advance for eading and thanks a lot for providing some advice.