Edit: Going to try to re-explain what I'm getting at, sorry.
I have my minecraft template's command line set up like this: http://puu.sh/flYFV/e406cf9d81.jpg
Both variables XMX and XMS are set up the same.
XMX (max memory allocation) and XMS (initial memory allocation) are the values that I am allocating to a minecraft server's ram usage.
I want to find out if there is a way to change the set values / default values of my variables XMX and XMS for a specific server (instead of making an entire template for a specific ram setting, or making those "command line" profiles).