Autofill Multiple Child records from sibling table

Almost, because of the way my client is using the application they would like the button to appear on the Traveler Record not the Job record. Other than it being on a different form i'd like for it to function exactly as you mention.

Call just before I get into my explanation I want to be sure of the ask.

How can the button be on the traveler form?. If we do that then there�s no way to identify which job we need to create the travel details for.

I have a feeling that what they mean is that the button would be on a report of jobs which is embedded on the traveler record.

I double checked, it is the Traveler form i want the button on Not the Job form.I can know the identity of the job through the Traveler, it has a field 'Job #' that contains the ID of the Job this traveler belongs to.

Currently i have a button 'Add traveler Detail' on the traveler form. This is the formula for the button

URLRoot() & "db/" & [_DBID_TRAVELER_DETAILS] & "?a=API_GenAddRecordForm&_fid_7=" & URLEncode ([Record ID#])& "&z=" & Rurl()

Normally when the user is on the Traveler Detail form one of the fields is a select box that populates based off of the 'Job Details' table, this select box only shows Job Detail records that dont have a corresponding Traveler Detail Record. (This was setup before the client started using my company for IT, I'm not sure how that works, still reading quickbase docs). When the user makes a selection it auto fill's the rest of the form and saves it. This works well for single job details but some jobs have 50+ details and manually doing this for each one has been a pain for them.

All i really want is a button that will automate the task of
- click add traveler detail - this opens the traveler detail form
- select any entry from the select box
- save
- repeat if the select box is empty(All details have been added) stop

Thank you so much for trying to help