Edit Multiple field settings

Applications Forms
#1

I have a form with 30+ fields.
When i try to save a record, i get errors telling be Maximum size must be 10 characters.

I have figured out that this setting exists in Fields > Values format and I can resolve the issue by setting Maximum Size = 0
Firstly, is this right?

How can i set this across all fields? I don’t want to have to edit 30 + individually

I am not using a menu (if that is the proposed solution)

Thanks

#2

the generation is done depending on the fields in your database. So I guess that if you change your databasefields and then execute a new synchronize the fieldlength will adapt.