Hi @rkt
I have a feature request about "adding an option to customize the location of the tab" :
Summary
Could you please add an option in the preferences of your addon to give the user the choice of the tab to display your addon?
(in order to move the addon from its own Helix Generator tab to a custom one)
Some users might want to place your addon in the View or in the Tool tab… (or elsewhere).
I invite you to read this related topic (if you want): https://blender.community/c/rightclickselect/dzdbbc/
Some addons have this feature and it’s very convenient for the user, especially when there are many addons that add their own tab on the N panel (it could become overcrowded vertically).
I think that it’s a good option to have in the preferences of an addon ; and if most of the addon developers consent to add this option, you (the devs) will succeed to fix “the N panel tabs clutter”. 
Maybe you could have a look at these (free) addons’ source code (to reuse the lines related to this feature)?
Backface Hiding : https://gitlab.com/ChameleonScales/Backface_Hiding
SpeedRetopo : https://gumroad.com/l/speedretopo
Thank you in advance for considering to add this option.