Re-indenting a document using tab stops

[mika]

I can't for the life of me understand the tab stops thing

Ok so I create a simple outline, like for example:

• bla
• bla2
  • bla
  • bla2
• bla3

I then want to make the indent size bigger on this outline so I

Select all
go format -> tabs -> clear all -> type 50 in tab stops input -> Set -> OK

and nothing happens

Any help on how to make it work ?

Thx!