[TxMt] Automagically figuring out tab size?

[Giulio Cesare Solaroli]

Hi all,

I have just bought TextMate and I am puzzled with a trivial question.

> [...] user's tab settings [...]

Where can I fix the tab setting to match 4 spaces in all the documents I open?

On some documents it happens to be 4 spaces; on other documents 3 spaces.
I thought it was an extension based configuration, but I could not
find any such option anyware.

Can anyone share some knowledge with me?