Hi Srinath
AFAIK, there is no setting in FCC to achieve this. You can do this instead in the Message Mapping step by doing a right justify on that target fields.
You can search for plenty of solutions on the internet to perform a right justify and include it in a UDF.
Below is an example of a UDF of execution type single values with single input. It right justifies the String based on a total length of 15. You can change the field length according to your requirement.
return String.format("%15s", input);
Rgds
Eng Swee