Hello, Lester.
The 1000-region limit is not configurable. It is hard-coded into the source code. If you feel comfortable editing the source and recompiling, you can just change the limit to whatever you want. Here is what you would need to do:
1. cd kent/src/hg/hgTables
2. grep -w 1000 *.[ch]
3. manually replace every instance of 1000 with whatever you want the limit to be
4. make alpha
Please contact us again at genome...@soe.ucsc.edu if you have any further questions. Questions sent to that address will be archived in a publicly-accessible forum for the benefit of other users. If your question contains sensitive data, you may send it instead to genom...@soe.ucsc.edu.
---
Steve Heitner
UCSC Genome Bioinformatics Group
--