So meenwhile I dont see any menu with storage space sharing in the wallet

this feature is still being tested. I will soon announce alpha test that will require an invite to participate
wait so what this really is...is a scypt coin...with none of the functions that you described...We cannot sell space...or buy space on a grid yet?
You don`t want to see what bugs we have in alpha testnet atm

Or if you really want - I can add you to the invite list. Will start sending the invites in 2-3 days.
I think many of us would like to see these test bugs...as if it is true you have done something that many projects that have been in devleopment for a long time are working on finish...and you came out of nowhere....