No problem, and to answer your other questions:
Is pin a possibility in terms of attaching items a player picks to indicate equipping the item?
You could try adding another image point to your character, and position the weapon sprite at the image point.
Also, my main character is set for grid movement, however, when he reaches the top of the grid he's laid out to, and I press up, it senses he can't move up and instead always moves him forward.
You can stop the "move up" event by adding another condition that checks the Y position of the player, like this:
Updated Example: EnemySlimeLerp.capx