How to implement?Use which controls? Tabpanel?
Implement WHAT ? ? ?
You can see the picture?
No.
I see it, it’s shown after a few seconds.
The control he is asking about is the IDE tab (the one on the top that you use to switch pages in the IDE)
It’s a graphical version of the tab panel
If you want something like this one you have to create a canvas (to show the tabs and there the icon, label and close icon) and a page panel control (that’s a headless tab panel)
I think there are third-party stuff to do a custom tab panel. XojoDevspot has one(I’ve not tested it)
http://www.xojodevspot.com/applications/easyshop/easyshop.php?prod.3
By @Matthew Combatti
after a few minutes in fact … connecting to baidupcs takes quite long time.
Here it times out.
from their Terms of Use
But the link doesn’t matter ?
this may be what you need
this is for the “old” realbasic, but can surely be adapted to xojo.
It works just fine in 2013r3.3 at least 
Great tip!
I loaded it with xojo 2016r11 and it opens fine, only some errors with deprecated PICT icons.
I’ve got a newer and Retina capable version at http://www.mothsoftware.com/content/xojo/ “Trixi’s tabsheets”.
Requires MBS. Otherwise nice