...
Click on "Add" to create a new table, a dropdown will open with the options of the table types, according to the possible devices. Alternatively, you may edit an existing table by clicking on it.
From the right side of the screen add the “Name” and “Description” for your table.
There will be a list of all fields associated with the selected device. Identify the relevant fields.
When you double-click on the relevant field, a popup will appear where you can enter the valid range and set value. In order to reset the valid range and the set value, simply remove the previous values and save the changes.
...
Textual fields popup:
Numeric fields popup:
...