validation behaviour on blur

Is there a way I can change the validation behavior? It seems to affect the demo page too.
If I load a form, I can immediately save it without actually firing any validation. I also want to validation errors to immediately load (the red ones) when I initialize it. Only after entering some data then removing it with backspace will show the "this field is required" error for example.

Additionally, and I think this is a more generic question with regards to react, but still related:

if I have

<mycontainer >

<SchemaForm />

<MySubmitButton />

</mycontainer>

How can I make the mysubmitbutton check the validity of the form prior to allowing the submit, or even bind the enablement status of the button to the validity status of the form?

thanks

Start by reviewing the demo page and the SchemaForm usage described in the issue. Determine how initialization, blur validation, saving, and an external submit button should interact; done would mean the requested validation behavior and a way to observe form validity are clearly implemented or documented.