Make field not editable for created records

[Naruto]

Hello, I’m new to corteza.
Is it possible to disallow editing of field of already created records in compose? I mean user should be able to set field’s value when creating a record, but should not be able to change it after.
Setting “deny” on “update” permission of field means that user will not be able to set the field when creating a new record, so this is not suitable.
For now I thinking about making an automation script with trigger before(‘update’) which will throw an error if field was changed, but maybe exists better solution.

[KOAMSK]

You should be able to disable updating without blocking creating a new record.
I’m using it without any problem.

[Naruto]

Can you please explain or show screenshot where to find such option to do that?
In window “Set permissions for field “…”” I have only options “Read “…” record fields” and “Update “…” record fields” and latter doesn’t allow to change field when creating a new record.

Also instead of using automation script, I later found that it is possible to do with field validation in field’s settings by using expression “oldValue != ‘’ && value != oldValue”. But it will be better to not allow change field at all like with denied permissions instead of showing error.