How to hide a tab in a Xaas form ?

Hi,

I'm currently working with vRealize Automation 7.4.0 and vRealize Orchestrator 7.4.0 and I didn't find any way to hide a tab in a vRA Xaas.

Nevertheless, I know that it is possible as the "CodeStream" tool provided by VMware itself is able to.

There are two tabs in this Xaas at the time of it's opening :

As soon as you select options on the second tab, more tabs appear :

Editing the Xaas did not show anything that could explain this capability : the tab *seems* the same than those I use.

Can some give me a clue about how it is doable ?

I suspect that there is a more capable Xaas editor than the one I'm currenlty using in vRA ;-)

Thanks a lot for your help and ideas !