API cannot set PDA pressure limits

[LRossman]

The minimum and required pressure limits and the pressure exponent for Pressure Driven Analysis can be specified in an EPANET input file but there is currently no way to get/set their values using the API. This can be fixed by adding EN_MIN_PRESS, EN_REQ_PRESS, and EN_PRESS_EXPON to the EN_OPTION enumeration in _epanet2enums.h and using the existing functions EN_getoption and EN_setoption to get/set their values.

[lbutler]

Can this not already be done with EN_getdemandmodel() and EN_setdemandmodel()?

I remember using them as part of a test when adding support for changing pressure units. Admittedly, it has to be done in bulk, and maybe you would want to set them individually

https://github.com/OpenWaterAnalytics/EPANET/blob/1ff1e8fdfc5c6ee3a1482e3004cf61bd0c655a72/tests/test_units.cpp#L123-L140

[LRossman]

Thank you @lbutler . Perhaps this is a sign that there are too many API functions and it's hard to remember them all or that my brain is turning to mush (more likely the latter).