A family of Microsoft relational database management systems designed for ease of use.
Hi Stanislava,
After creating the custom field and adding the Flag1 column, set a value to the task. From the video, we see that you have not created a task and have not set a value to the task's Flag1.
After setting it to Yes/No, save and close the file, then re-open the file and go to Custom Fields and change one of the No to a Yes. We suggest re-checking our video and follow the steps until we re-open the file.
Regards,
Sheen