In the following you can find concrete use cases with a description on how to create and/or confirm mappings.
In general:
If a project occurs in the mapping dialog there are changes in the tab file.
Renamed folder
Changed NB
Changed order number
Changed variable of order number
Deleted project
Hidden project
Moved project
Changed project name
Splitting of project with value range variable in two projects with fixed variable
Merged projects with fixed values
Resolved value range
Changed table row
Deleted/hidden table row
Rearranged table rows
Value range: Changed values
Value range: Changed range
Value range: Changed range with undefined stepping
Concatenated variables
Fixed variable changed to value range variable
Changed precision of decimal places
Renamed value range variables
Renamed fixed variables