Dear Katja,
Meaning of these icons is described in CourseLab 2.7 Help. Though version 2.7 has more features, main elements are the same in 2.4 and 2.7, therefore using new Help may be useful anyway. Please go to CourseLab 2.7 WebHelp and proceed to Interface > Task Pane > Frame structure.
Your colleague had probably used visual effects and delays. They can be configured from usual object's Format dialog - please proceed to Handling Objects > Controlling Display Time chapter in the WebHelp.
Dear Katja,
Meaning of these icons is described in CourseLab 2.7 Help. Though version 2.7 has more features, main elements are the same in 2.4 and 2.7, therefore using new Help may be useful anyway. Please go to CourseLab 2.7 WebHelp and proceed to Interface > Task Pane > Frame structure.
Your colleague had probably used visual effects and delays. They can be configured from usual object's Format dialog - please proceed to Handling Objects > Controlling Display Time chapter in the WebHelp.