i can not edit the switch(change network adapter )from vcenter.
You need to explain a bit more and what your trying to do, what happens when you try, and any error messages.
i am installed esxi6.5 and vcenter6.5
when i need to make edditting for port group on switch i can not find the icone of edditting ,but i see the icone for vswitch only.
Do you see the three dots in the port group?