I was asked at work to create an interface for a web application which could let users browse through 19 templates, initially as thumbnails only, giving them the ability to see the picture in detail by clicking on it. Then there would be 2 actions that the user could take on these pictures: selecting them and making one of them the default.
Below is the design I came up with:
The checkboxes allow the user the select multiple templates, which will be added to another application (though the details about this process aren't important) and the radio buttons let the user select the default template, meaning, the one that will show if the user in this other application has not chosen his template yet.
After seeing this design carefully, I figured that even though I provide a help text (displayed if you click the question mark icon) it's still hard or confusing for end-users, specially for people with very little computer experience to understand the objective of this screen.
I would like to come up with a simpler design for end-users without breaking the functionality that his page already has.
What can I do to provide better User Experience in this case?