Hi Nagraju
As mentioned by Sudhir & Naveen you will have to create a new role.
This can be done in two steps.
Step 1 Menu creation
You need to add the transactions from the 30 old roles to the new role (wait with the new transaction until step 2 is done)
In the menu of the new role you can import the menu/transaction from the 30 single roles to new single role
If the menu is not on the composite role then pick the menus up from the single roles to the composite role and import the menus. You can now use the old composite role to copy from.
select the menu/ transactions needed for the new roles menu and transfer them..
Step 2 Authorization generation
If the SU24 is correct you only need to generate the roles authorizations and add the organisational levels.
OK if this is not the case then you need to import the profiles from the single roles into the new role.
Go into the authorization tab and start with change authorizations
Here you have the option for inserting authorizations from existing profiles related to the single roles.
It's still a job to be done, but far from as long as comparing authorizations objects in 30 roles manually in cut&paste mode.
When the role's authorization is generated you can add the new transactions you mentioned and see what SU24 suggest when changing the authorizations again.
Enjoy :-)
BR Niels Knuzen