Yes, you can add more than 12 question to your Smart and Custom Test.
How to add more questions to a Smart Test?
Open up your test and navigate to Settings > Test settings. The number or auto-generated questions is by default on Auto, but you can change that by typing in the number of questions you like.
How to add more questions to Custom Skills Test?
To add more questions to your Custom Skills Test open up your test and navigate to Settings > Test questions. Click on 'Add question' and start adding the questions you like to your test.
⚠️ When adding questions, we also suggest you review the time limit. For the smart test, if you've left it on "Auto" it will change automatically.