#104463
Oleg Ilin
Participant

Dear Svetoslav and Steven,

I thank you  for your attention to my question.
Your hints helped to find a solution with CSS. You’re supposed to use ‘block: none’ (not a property visibility )  in the right block surrounding the needed item . The only one difficulty is that the blocks for Tabs and LayoutPanel hiding are fundamentally different.
Best Regard ,
Oleg I

 

https://disk.yandex.ru/i/NpoFVu_MxCbOvg