Membership Admin > All members table edit

Hello there,

I would like to inside membership > all members make some changes to that table with informations about the members. I need to somehow insert user id in the table for every user.

I see that now when I do the mouseover on the username it displays user id, but i would like to sort it in a column.

I cannot find the template for this table, and the exact place where are the informations stored inside plugin.

Can someone help with the informations?

Thanks in advance,

Kind regards from Europe