There should be a button manage spells on the far right side Preparing spells must be done at the end of a long rest, the time spent should be part of your 2 hrs of light activity This brings up an extra panel that lets you add and remove spells based on your current class availability.
Pattycheeky - Pattycheeky added a new photo.
It is well known that subclass features that give you spells (i.e
Domain spells, oath spells, conclave spells, etc.) cannot be switched out unless explicitly stated like with the aberrant mind and clockwork soul.
All the prepared caster classes except wizard do not have spells known, they can prepare any spell on their list without restriction There is no need for them to swap out spells known because they literally know all of their spell already. Even in the character creation you can't change the spells You learn additional spells when you reach certain levels in this class, as shown on the clockwork spells table
Each of these spells counts as a sorcerer spell for you, but it doesn't count against the number of sorcerer spells you know. Sorcerers can only replace a single spell at any given level, and must choose whether or not to swap the spell at the same time that she gains new spells known for the level. When leveling up, players can swap out one spell for another, as long as it is limited to the proper school of magic The sorcerer’s spellcasting trait allows them to replace a sorcerer spell they know when they reach a new level in the class.
The wizard can still switch out all their spells from day to day from there book, with the bard and ranger being very limited to one change a day
So while it's not in the rules, i think you could adopt spell versatility without anyone really suffering.
