device naming

Anyone have any idea how hard it would be to allow other dynamic naming from
tn5250?  What I mean is in Client Access I can set my device name to MYPC=
and it will automatically give me MYPC1 followed by MYPC2, MYPC3, etc.
There are other options besides = that will allow alphanumberic name
suffixes.  I lost the link that explained the different options.

The only one I use is = because I normally only run 1 or 2 sessions.  It's a
bit inconvenient to have multiple config options, especially if I give it to
an end user with a desktop icon.  I was going to have a look myself, but I
didn't have time yesterday, not that I'd be likely to figure it out...

TIA