Starfinder by Roll20 Character sheet help

So, the starfinder sheet is wonderful, however I want to know how to add an ability or something, that will essentially have a 1 per day usage (this I already figured out), and also add the current class level as a numerical number to the current hp. I have tried +@{class_1_level} to @{hp} but that does nothing with the mod thing.

Hi NewmanD, 

Could you elaborate on what you are trying to do? Where are you trying to add the class level to the HP? 
A screenshot would help. 

Hi newmand, unfortunately temporary modifications to HP are not supported by the mods syntax of the starfinder sheet.

It's been years since I touched that code, so I can't remember for sure, but you could try the following mods field syntax:

+@{class_1_level} to hp