!TAB_WIN
This system variable controls the tab navigation feature (Windows only). See the "Tab Navigation Behavior for Microsoft Windows" section in the PV‑WAVE Application Developer’s Guide for additional details. Possible values are:
1—The tab navigation feature is enabled. When the Tab key is hit, focus is shifted to the next appropriate widget based on the value of the widget's tabbing attribute.
0—The tab navigation feature is disabled. When the Tab key is hit, PV‑WAVE’s tab keypress handler immediately returns. This avoids negative interactions with any keypress handlers users may have created themselves.
The default value is 1.
