Note that a checkbox can also be marked by clicking the spacebar instead of the left mouse button when you use the TAB key to browse through the data fields.

1.10.3 The Table Mask
In the figure below the master data module GENERAL is opened.
Accordingly, the corresponding table flags Airports, Countries, Positions etc. are shown at the top of the Table Mask. Currently, the table Airports is opened, displaying all data captured about worldwide airports.

Enote +1