Masking ability with validation of FI documents

Hi,

I have set up a pre-req in the FI document validation using a set. My pre-req looks as follows:

G/L IN ACCT600

My set is named ACCT600 and has a from and to value of 600000 to 699999.

Instead of using a set to code this range, is it possible to use a mask in the pre-req and change my pre-req to say G/L in 6*****

This example is not so bad, but in my check I want to compare cost centers and if I can't use a mask, I will have to enter many cost centers and have quite a bit of maintenance to do over time.

Hopefully someone has used a mask and can let me know how it works.

Thanks,

Karla