I'd like to be able to edit Jet functions in multiple cells at the same time.

Scenario 1:  I have several nested NL Rows and I forgot to filter for Global Dimension 1 (NAV).  I'd like to be able to add this filter to all of the affected functions at once.

Scenario 2:  I've built a report using Sales Invoice Header/Line that I want to duplicate for Sales Header/Line (similar field names and structure).  I want to change the table name for all of my functions at one time.

Scenario 3:  I've built a bunch of GL Balance functions now I want to copy those to GL Budget functions and add a Budget name filter.

Excel's Find and Replace can do a little bit of this.