map selection question

[Hustler]

does any1 know of any way i can host a DF2 server with the following map cycle

stock
custom
stock
custom
and so on

i've tried renaming the customs to go in alphabetical order with the stock .bms names

but i still only get all the customs and then all the enabled stocks in a rotation

if any1 has any ideas how i can get round this i wud be well greatful

thx
Hustler=|@|=