When you move or delete table variables, both the predefined and custom properties are
reordered so that their values correspond to the same variables. In this example, the
values of the ToPlot custom property stay aligned with the variables marked for plotting,
just as the values of the VariableNames predefined property stay aligned.
Remove the Customers variable and display the properties.
T.Customers = [];
T.Properties
ans =
TableProperties with properties:
Description: ''
Add Custom Properties to Tables and Timetables