BTW: these are the resulting lxc confings, profiles:
root@proxa1:# cat /etc/pve/lxc/333.conf
#created by pct on host proxa1
arch: amd64
cores: 2
features: keyctl=1,nesting=1,mount=nfs;nfs4
hostname: tstunpr1
memory: 512
net0: name=eth0,bridge=vmbr0,hwaddr=72:22:FD:E1:95:B8,ip=dhcp,type=veth...