How to easily delete [Imported Gobos] and why did they get there in the first place?

Question

I am confused by the gobos that show up in the Import>Gobo Images>Imported Gobos menu. (see attached) 
 For starters...let's say I have a file with 100 gobos in that list, but NONE of them are used in Magic sheet 10. And then I import only magic 10 into a blank file, it brings in ALL those imported gobos. Why? It's almost like they are a watermark. I can't bring in any magic sheet from the file without also bringing in all those extra images I don't want. 
 And then to try and delete them from the file, if I click on "Delete Unused" in the image manager, they don't get deleted. The only way I have found to delete them is to go through and manually delete each on in the file manager which takes forever. At the very least I should be able to shift click the first and last gobo to delete them all at once. 
 They bloat my file size and clog up my image manager. help! 
 thanks Cory

eos moderator · Answer

The custom gobos are part of the bigger Resources category that you can merge explicitly as a category. Resources however also get merged implicitly when you choose magic sheets. 
 Custom gobos can currently only be deleted individually in the Imported Gobos section of the browser you can see in your screenshot.

eos moderator · Answer

Impactful feature requests are those that describe a need and how it impacts your workflow. You don't have to worry about the specifics or think about e.g. Shift-clicking or other methods. 
 To quote the feature request forum: " The most helpful information you can provide us when commenting on issues is how a particular suggestion would help you. If you describe your use-case and how the suggested change would benefit your work, it lets us gain a much deeper understanding of the need behind the suggestion. Suggestions often have an impact on what we work on, even if we ultimately choose not to implement a suggestion exactly as it&rsquo;s described. Our ultimate goal is to understand what you and all users need and to create solutions that meet those needs. Occasionally, that&rsquo;ll mean implementing a suggestion as described, but it usually means working to understand the need behind the suggestion and how we can meet that need for as many users as possible."