Hi Scott.
I'm sorry for the late response. Thanks for taking an interest.
One problem with the names for the clipboard entries is that when the clipboard limit is reached an older entry must be discarded. I assume that you discard the least used entry? Whatever the algorithm once the limit has been reached, each time you perform another cut/copy operation it may be that the names can no longer be trusted as they are reassigned to different entries. So one time you'd use name "3" and then the next time you use "3" you could get a different result!
For me, if the text search mechanism were implemented I would never need to select by name. I have my SE setup to hold 50 clipboard entries and to restore them from disk at startup. After not very long I would lose total track of clipboard numbers (plus the problem above) so I would still need to search the text to determine the name to use.
In my workflow, when I want to paste in some text I know exactly what I want in my head, so as soon as I bring up the dialog, I could type some of the text to narrow down the selection, and then use the arrow keys to select from some subset on entries. Then hit enter and its all done.
In terms of clearing the filter, I would expect the filter to be clear when the dialog comes up and if I make mistakes as I type then backspace would be sufficient - the same as the smart open I think.
In my view, it may be that the "name" concept could be discarded as it does have problems, especially once the clipboard size has been reached and names are reassigned to other entries.
Cheers!
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Greg.