adding pool members dynamically without DNS resolution.

Hello dear forum users,

we're using F5  Big-IP and we need to find a way

of adding members to a pool (from the 

same ip range of course)  dynamically without 

having to add each member manually all the time. 

for instance, if a new server/instance has been configured, instead of adding a member 

one by one, we need to have it added without our intervention. 

please let me know if there's a way of doing so. 

thanks in advance (: