By default 10 rows are displayed in role tab of SU01, can we change any settings to display more rows at a time, its a pain to copy roles manually from an existing user if there are many of them.

Go to se15 use table agr_users , put user name and

execute. U'll get all roles of a user. In case of cua use table usla04.

Goto su01--> and in roles tab -->click on empty row selection pop up will appear

and in that we have multiple selection button is there select that and go on that Total roles in the system will appear (if have access ) then select the roles that u need .In that we can choose all at once also.

Above are some answers but yes there is no way by which we can assign more that 10-12 roles at one time.