Can you not change the value of a multiline StringInput?

[e-ave]

Edit: Got confused because StringLabel and StringInput are separate, but Form.MultiLineTextControl supports InputControl, so it works now!

I have no issue with the normal StringInput, but when I use Form.FT_MULTI_LINE_TEXT, I am unable to set the value at any time.

First I tried to set the initial value of the input

'iPrompt': Form.StringInput(value="test", tp=Form.FT_MULTI_LINE_TEXT),

Which results in an empty box

Then I tried this, which does nothing

self.iPrompt.value = "test"

and

self.iPrompt.text= "test"

and in a form change action also does nothing:

self.SetControlValue(self.iPrompt, "test")
self.RefreshField(self.iPrompt)

I was unable to find a single example in the IDA docs or Github search or Google search. Is it just not supported? I am using IDA Pro 7.7 by the way.