Hello Andrei,
A bit more information from you would help -- what software are you
using? I don't believe there is anything I would describe as "tabs"
in Microsoft Project. If you are not using Microsoft Project, I
suggest finding the newsgroup specifically for the software you are
using.
I hope this helps. Let us know how you get along.
Julie
Project MVP
Visit
http://project.mvps.org/ for the FAQs and additional information
about Microsoft Project