Hello! More questions but this time I have a little clue atleast :)

[Chanus]

1. Nope. You get eight. You can make spell sets, though, which you can switch between fairly easily. Right click on the little red book icon.

2. If you can cast them on yourself and they land, they stack. Other than just simple cues like all the "Skin Like" spells are of the same line and won't stack, you could get in-depth and look at the spell stacking on lucy.allakhazam.com.

2b. If they stack, use both. If they don't stack, DS > HP.

3. Generally, your new spells will be upgrades to your older spells, so you don't need to keep both. The only damage spells you would want to keep once you get new ones are DoTs (Damage Over Time), as they tend to stack.

4. When you reach level 14 (I think for Druids), you will get the spell Bind Affinity and you can bind yourself anywhere. Otherwise, you can be bound by another player with the spell in cities.

5. You can have more than one hotbar up. Go to Options > Keys > Hotkeys to set toggle keys for a second hotbar.