[Resolved] Improving MAT-xx checkers (15, 20, 25) - GC38ZCQ

The MAT 15, MAT 20, and MAT 25 checkers default to the date run, going back one year. But GC38ZCQ MAT 15, for example, requests any one year period in which the requirements are met. Is it possible to update these to verify for any one year period, or to pass a date to the script? One wonders how this person was able to use the checker for dates in the past (seems like there must be a way):

Username has used Project-GC to see if they qualified for this challenge and they did.

Between 2017-04-21 and 2018-04-15 I found 15 matching owners.

Thank you!

Please contact the scriptwriter of the script "Mat X challenges" (by olalb) direct
Contact : http://www.geocaching.com/email/?u=olalb

Thank you! I contacted olalb and he explained how the script works. So, you may close out this post.