You can easily save checks as favorites on units and/or rounds that you frequently use. Start by pressing on New, select Perform check, select a site/section and a unit/round. Now press on Next and after that press on the star-icon on the check you want to add as a favorite.
If you then go back to the start screen, you will see that your favorite checks are shown on top. Now just add more favorites if you like!
To remove a favorite, simply click on the small X-icon.