Issue Description
Currently in the node Input Trigger for documents you can only have 1 single file upload/reference for a single document field. You have to add more document fields for more file uploads for a user. It would be easier if we can have a single field/document for multiple file uploads. (current Copilot Chat functionality)
Root Cause (if known)
Only 1 file upload per document input field possible.
Proposed Solution/Enhancement
Create a new Fields type in the dropdown menu, multi-document (or make Document, multi-file upload supported)
Note: as [[document1] can be a variable used later on in the process, the variable should contain as search query string or otherwise all of the document file names/paths included the user uploaded in that multi-document field uploader.
Impact
User UI experience and efficiency to be able to select quickly from one click and file folder browsing selection of multiple files in one Go rather than having to be forced to go through many input trigger document fields for upload.
Additional Notes / Attachments
Current configuration multiple fields need configured, for each document upload.
Preference to allow users to upload more than one file in a Multi-Document supported field.
