Yes, there's at least one other request for this already. No, it has not been implemented yet.
It would be great to have the ability to search for terms when selecting parameters to link. As other comments have requested, filters and sorting features would be great too. You can search the Parameters interface prior to importing (Linking)... why not search the import process too??

Here's the previous request, made nearly one year ago: Search Bar When Linking Parameters - Autodesk Community