I needed to create a variation on the docsummary dashlet (Recent documents). Rather than overriding it, I decided to leave the "standard" dashlet available and create my own "custom" version. Having read through the documentation and various posts on the topic I have managed that and I have put the "custom" dashlet files in the directories with all the other "standard" dashlets because that is what all the posts I have found say you should do. The dashlet loads and displays as I expect it to.
My question is simply; is it right to put "custom" dashlets in the same directories as the "standard" dashlets or should they be put in the extension directories as you would do if it were an override?