Here is my question: How can users edit existing notes in a gallery? Below is are the details and screen captures.
I have the following scenario:
1. Notes screen displays information that has been collected from multiple meetings for one company (Notes = SharePoint list where company is a lookup field to Organization in SharePoint LIST2)
2. Organization is based on a combo box dropdown from previous screen.
3. Notes for the selected company are display via a gallery (gallery_Notes)
4. New notes can be added for this organization (form_NewNote).
5. Once a new note has been added, the gallery_Notes is updated with the most recent note at the top.
gallery_Notes
ITEMS = Sort(Filter(Notes,OrganizationNOTES.Value = ComboBox2.Selected.Organization),MtgDate, Descending)

If users select button to "Add New Meeting Information," a popup form collects the information. Information is added to the Notes SharePoint list. I have the organization field hidden on this form but below is the information:
UPDATE: = {'@odata.type':"#Microsoft.Azure.Connectors.SharePoint.SPListExpandedReference", Id:ComboBox2.Selected.ID,
Value:ComboBox2.Selected.Organization}
DEFAULT = ThisItem.OrganizationNOTES (organization is lookup field to SharePoint LIST2)
Save Meeting Details Button: SUBMIT: SubmitForm(form_NewNote); Refresh(Notes); UpdateContext({Popup: false})

Thank you!!