How to modify disk partition after Proxmox installation

Hi,
today I begin to use the very interesting proxmox on a minipc. I 've a 256 gb drive . During installation i 've set install partition at 128 gb. Now I see a local drive of 44 gb and local-lvm of 64.88 gb.

firstly I 'd like to understand how to use the other 128 gb ssd space as virtual drive and secondly how to change the local and local-lvm size .

thanks in advance for your help and patience