Hey,i want to move all my stuff from a chest in my house from one city to another ,is there any way to do it ? (apart from actually taking all the items and traveling to the other city and putting them manually in the chest? ... cuz i've got around 2t of stuff....would take forever)

I would say the best way is to get your companion to hold all the stuff.

Bring them to your chest get everything out and just unload it on them. Fast travel to the other house and then swap it all back...

However if your on PC there is probabbly a mod / console command to do it

take all your stuff, get outside the city then turn into a werewolf and run to the other city