InfoPath Dev

Unfortunately I am using list form. Is there any way I can show these items selected by default? or maybe in a multiline box separated by comma?

Qdabra has a tool called XLS to XML that will create an XML file for each row in a spreadsheet - this might work well for your scenario, because you could export your metadata to Excel, create the XML, then upload the XML to your new form library. Another option would be to have logic in your form that allows you to load the data from your ...

I think you would need to add a query to the list, so you could query the list and see if there were any items there that were created by the current user. You should be able to set that data connection to not query on load, and then in form load rules, set the query field for Created By to the current user, then run the query to see if a list ...

Thank you so much for your great suggestion, Hilary. I appreciated it. You're the best. :-) Have a great evening! Best Regards,  

If you are using a normal InfoPath form (i.e., not a list form) and are not using browser forms in SharePoint online, here's a sample:https://social.msdn.microsoft.com/Forums/en-US/aa339bf1-72e1-4efa-b1e4-403fb7785c96/how-to-select-all-items-in-multiselection-listbox-in-infopath-2010?forum=sharepointcustomizationprevious