Fortnite Creative Cell Phone Open?

So I play Fortnite on the PC and like to build with my friends in the creative area, but I have the problem that I don't know which key on the keyboard to open the phone to build you can maybe send me a photo with the key or describe where it is? And can you somehow increase the storage space of the creative islands?

Just have a look at the key assignment.

Ok but i can't find anything

So I don't know because I changed the keys

Fortnite Waiters bring back me out shoes and give me the skin

My name is Gavin sauber