MySql 5.1 Data Types - Changing Text

[tsporthd]

MySql types in EA 7.5 don't include LONGTEXT etc so I added it.  However it has a TEXT type which has a max length of 65k.

Every time I try to edit the text type assigned for the current MySql types it will not save the max length even if I change the common type to vchar,nchar etc.

Is there a way to do this without having to add a new dbms product?
I would think these types are stored in some file and perhaps i could edit the file but I can't seem to find the file.

Please help