With the introduction of project mode in 4D v18 and later, all project and table forms are made entirely of JSON format. This format allows developers to fully manipulate aspects of forms without the actual need to open the form editor to make manual changes. One of the biggest benefits is making selective changes to hundreds of forms with a single method which can resolve a lot of the initial warnings or errors when first converting to project mode. This tech note will dive into the file structure of project mode, the JSON format of a form, and how to manipulate its attributes.

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