Thanks for the report! A few of these features have been added in 0.9.6 - you can download the latest version on https://www.hamrs.app .
For #5, this is interesting, tell me how you would use this? Create a new profile for each park? Or would it be better for me to add those fields to the POTA template itself?
When I work Portable I like to log my grid, County and state. When I export this log into my main log, QRZ.com or LoTW, people will get credit for those categories. I’ve had some people email me for those kind of things.