Collection Editor Question

[RonMexico]

I'm developing a component that has collections along with other standard properties. I can get everything to work fine except in this situation:

I drag over my component. I then add properties and collections to that component. Lets say that I have a collection called commands. Then within that collection I add a command called 'ReadUSBPort' Then I delete that component. After that I drag over another component and it will not let me name it 'ReadUSBPort'. For some reason it does not delete the Windows Form Designer Generated Code. Any ideas where I could have went wrong?