This is a simple script that allows the user to quickly highlight nodes.

After the initial selection the user can choose to highlight additional nodes or toggle the label visibility.

The selection is removed when the user cancels. Users can work with other primer tools for the duration the script is running.

Script is not limited to a single model.

For convenience the script can be mapped to a function key (F1, F2, F3 etc), using the shortcut editor accessible by pressing ? from within PRIMER.

Popup is based on: https://www.oasys-software.com/dyna/scriptbox/yes-no-cancel-popup/