How to configure RZ12 and SM59 ABAP connection settings when we have work with Load Balancing servers rather than a specific server .

Hi ,
If we have a specific server say 10.10.10.10 (abc.co.in) on which we are working, Then under RZ12 we make the following entry  as :

LOGON GROUP          INSTANCE

parallel_generators        abc.co.in_10         ( Lets assume : The instance number is 10 )

Now in SM59 under ABAP Connections , I am giving the following technical settings:

TARGET HOST          abc.co.in

IP address                  10.10.10.10

Instance number          10

Now if we have a scenario of load balancing servers with following server details (with all servers on different instance numbers ) :

10.10.10.11    

10.10.10.13

10.1010.10

10.10.10.15

In this case how can we make the RZ12 settings and SM59 settings such that we don't have to hardcode any IP Address.

If the request is redirected to 10.10.10.11 and not to 10.10.10.10 , in that case how will the settings be.

Regards,
SHUBHAM