In captivate, how can I make a multi column of checkboxes selection like the picture below?
Look in the Learning Interactions for the Checkbox widget. That would be one way to add an array of checkboxes like the ones shown in your diagram. However, you will likely be disatisfied with the amount of customisation available with this widget.
Another possibility is to set up a Shape Button with custom object states to create the illusion of a checkbox. You would also need to set up Advanced Actions (most likely Shared Actions) that allow you to change the state of each button when clicked to simulate the effect of selecting the checkbox.
Be warned that what you are trying to attempt there can get quite complex if you also have custom interactivity and User Variables attached to these checkboxes.
Thank you so much for your reply.
I'll make the shape button.
Have a nice day 🙂
To add some more tips to Rod's great answer.
You could also use bitmap images or SVGs used as button, it is not necessary to have a shape button which has the big advantage that you can define its object style. SVG as button has the advantage or remaining crisp at any size.
Do not reject the Checkboxes interaction because it can be quite powerful and its inbuilt features will save you a lot of time. It has less styling options, but you can add multiple checkbox interactions to a slide.
If you keep with a custom button (shape, image or SVG) and you want to 'do' something with the result: