I sometimes search for a set reference in my inventory, if I have no results
I switch to all items search, maybe a button can be added to the inventory search
that continues the search but in the all items section:
something like:
"Havent found what you are looking for? press here to rerun the search
in all items"
Example:
When uploading instructions I like to check in my inventory if I already have
the set for sale that do not have the instructions. if the search result does
not return any results I will want to upload it into my store but have to change
the group to All items, then run the search again. its a very small improvement,
but it will save me a step everytime I do this.