The rules for Basic Spellcasting state:
Basic Spellcasting Feat: Available at 4th level, these feats grant a 1st-level spell slot. At 6th level, they grant you a 2nd-level spell slot. At 8th level, they grant you a 3rd-level spell slot. Archetypes refer to these benefits as the “basic spellcasting benefits.”
If you take this feat at 4th level, do you have to take it again at 6th level in order to get the 2nd-level spell slot? Or do you just automatically get it and you are free to choose another feat at 6th level? (I don't know if it is even possible to take feats more than once.)
Furthermore, what if you want to delay your multiclassing, and you dont take Basic Spellcasting until level 6. Do you get a 1st-level or a 2nd-level spell slot? Or both?
This whole wording is very unclear to me.