Yes! This can be done two simple a few steps.
Add an interactive module to your issue and tick the Important checkbox within the Settings palette.
Once this has been done, edit the Style you are using (or create a new one) and tick the Mandatory Interactivity option.
When your readers views your issue they will not be able to progress to the next page unless they have clicked the module.
The message will default to read:
This can be changed to your own message within the interactivity of your issue. Select the Pages palette and right click on a page followed by Page Properties. Click Incomplete Message to add your custom text.