See also: dev_inspect_ctrl.
Double-clicking a control variable opens an inspection window next to the variable window. The type of the inspection window depends on the semantic type of the variable, for example, “Matrix Inspect” for matrices, “Handle Inspect” for handles, and so on.
You can also select multiple control variables at once in the variable window by holding down the Ctrl key. To inspect these variables, right-click the selected variables and select Inspect. For each inspected variable type, a new tab card is opened in the inspection window. Variables of the same semantic type are grouped in a single tab card.