(...)"create" your own tab stack in PSS:
Just place more panels at the same place and hide all panels except one as "hide on startup" or use global variables for show/hide a panel.
Simple Example:
$init_ps_global(panel,1)
$showpanel(Panel1,$ifequal(%panel%,1,1,0))
$showpanel(Panel2,$ifequal(%panel%,2,1,0))
$showpanel(Panel3,$ifequal(%panel%,3,1,0))
$showpanel(Panel4,$ifequal(%panel%,4,1,0))
(...)
Some of you might know this already, but I want to share my discovery:
If you do it the way above, you'll experience flickering (like you're used to from Columns UI anyways), but there's a way to completely avoid this:
// Show
$ifequal(%panel%,0,$showpanel(0,1),)
$ifequal(%panel%,1,$showpanel(1,1),)
$ifequal(%panel%,2,$showpanel(2,1),)
// Hide
$ifequal(%panel%,0,,$showpanel(0,0))
$ifequal(%panel%,1,,$showpanel(1,0))
$ifequal(%panel%,2,,$showpanel(2,0))
@tedgo: Thanks for showing me the example code. I've been able to replace Columns UI's Tab Stack. I doubt I'd figured it out this fast without help.