Hello there, I tried to create some items and had major Problems to do so, so I thought I list them here and you guys can see if some "good" idea can be found.

Create a "magic" Item:

1: Weapon

1. We could need an option to remove or add Weapon Properties, I know you can seemingly add them as a modifier but that's unintuitive I think. I would be easier if we can remove or add them in a seperate field right in the Basic Informations 
2. If you choose a Base Weapon you should be able to edit the base informations like the dmg-die or (properties, etc.)

2: Item

1. Wonderous Item, if you build one, the should be a way that this Item or an effect of it can Show up in the Attack/Action section of the character sheet (if there is one pleas tell me)

Creating a Spell

3: Spell Attack Modifier

1. We could need a section or field to tell, what kind of SAM the spell should use, I know it's unusual but sometimes you want your Barbarian to get one brutal spell fopr what ever reason

4: + to hit

1. We could need a way to implement a fixed modifier to hit, I'm not entirly sure if this is a different problem than 3.1 to be honest but I think so.

5: Spells through Items

1. If an Item grants you a Spell permanently, it Shows up in your Spell List with the mark "At Will", I would like it to say "Cast" like a ton of other Spells normaly do

Spelllimitation

6: Spells Prepared

1. There should be a way to change the number for Spells Prepared, for example a Wizard knows 5, first Level spells and 3 Cantrips on lvl 2, sometimes you want to change that number. Without removing it completly
   
   
   

I think These were my "main Problems", I may add new ones here, as soons as I find a "problem".

I know all thoses things are not that importent, and for some Things there could be a Workaround (please let me know) but I think you should have as much controle at Building an Item as you have with LEGO :)