Hey guys, as you can see on the picture I have this midi track imported in fl studio, I wanna delete all this empty space where there's no actual notes, because if I export it like that it will be a track of 2 minutes whilst there's only 30 audible track. Thanks!

 

I haven't used for a while but, I think you want to look at the little entry box top left of your pic. I think you can set the length of the pattern there. I 'm not 100% because this looks like an older version of FL.
You can set the length of the pattern somewhere if not in that box.
it's all in the manual, F1 is your friend : )

 

Pianoroll and select-symbol? If the empty space didn't go away you can maybe select just the notes, opy or cut them and paste them in a new empty pattern.

 

thanks but if I use that I can only make the pattern even longer, the minimum is what I have in the picture

 

Even if I select only the notes and paste on new pattern I get the same results :/

 

First of all what, version are you using? This should be the first piece of information you provide us when seeking help.

 

Fl Studio 11.1.1 x64 producer edition

 

Check through the MIDI parameters such as velocity, expression, pan etc. and make sure they are not written past the last note.