What is the radius accounting attribute that will contain the commands?
For the Junos devices you need to add Juniper-Interactive-Command and Juniper-Configuration-Change_ to the attributes list in the account.ini file. You also need to make sure that the Radius Client is defined to use the juniper dictionary.
For Cisco you need to find out what attribute they are using and make sure it is defined in the dictionary file that you are using for that client.
You may also need to watch the size of the .act file because with the addition of the commands people are using on the devices it could cause these files to grow quite large. If there isn't a lot of management of the devices going on then you will probably be OK, but be aware that there could be a lot of additional space used if you are making a lot of changes.