Feature request: save as .ufo by default instead of .hpi

TA has a hard limit on the number of files with .hpi extension that can be in the TA folder. It has no limit for .ufo and this is the file extension that is used for all maps, as a rule. I know it's easy enough to just type .ufo at the end but this would be nice to have.

Also, TA-Forever's map library system does not even recognise files with the .hpi extension.