attribute connected to scale window layout

[STAP]

Good evening,
I was wondering if there was a way to connect an attribute to the value of a layout scale created by me and with a given name.
For example, I connected an attribute to the ctab system variable so that I can see the layout sheet name on the attribute.

Do you have any advice?

 

[STAP]

cannoscale l have already used and does not seem to see it...the attribute value does not change while selecting various scales in the layout window

 

[rpor66]

find a mtext with 2 fields, one connected to the viewport, the other to the ctab variable.

 

[STAP]

Thank you so much I didn't understand how to connect the name of the scale to the attribute, now it's all clear.