hey. I have created new database and it is saying that you don't have permission to access the page but default database is working fine. Need Help.
You probably have not saved permissions for that specific database yet after creating it. It's an easy thing to miss but you need to set up at least yourself for access to the database and save.
You would need to customize the output to change columns for different screen sizes. If you are familiar with bootstrap you can use media queries with our Custom CSS backend setting to change some of that around. We also have documentation on builtin filters and hooks that you can do more extensive changes without modifying the code directly. You will need some programming knowledge to make changes like these.
There's really no limit to the total number of uploads per entry built in so you should be able to upload as many as you like for each record.
There is also no limit to the number of databases you can create either.
Hope that helps!