You'll need the Pro version to add new layers - I'm not sure if the add-on pack uses new layers ( KristerSwe can confirm / deny), but beyond that I don't believe anything is Pro-only
Hello! The new addonpack needs many new layers so you must update to pro to use them . i guess you can mix the addon pack with the original ones but not a good idea and i dont recommend it ...am not sure about if you can add style and categories in lite version ?