The Tcl Commands Pane

The Tcl Commands pane contains all available Tcl commands, grouped by their type.

While in the Expression Builder, Tcl commands help is available via tooltips that are displayed when hovering the mouse cursor over a command:

Clicking the More Info link, a popup window is displayed containing detailed help related to the command.
When typing commands manually into an editor, the Autocomplete functionality (CTRL + Space) shows a list of possible commands matching the input string. If the text begins with $ (denoting a reference to a variable) and CTRL + Space combination is used, all existing variables are shown in the drop-down box.

In addition to the standard Tcl commands available in the Expression Builder, TestComposer enables you to load additional Tcl packages such as to gain access to their inbuilt commands. For information on adding additional Tcl packages, refer to Defining Script Properties.

A Tcl command is added to the Expression pane by double-clicking the command in the Commands pane.