Adding custom elements inside the form

[punto-]

Hi.

What is the best way to add custom elements inside a form? I need to add a button to a part of my form, I haven't seen the "button" element in the documentation. I also need to add a QR code, using a library (http://jeromeetienne.github.io/jquery-qrcode/) which takes a div element as a parameter and creates the image inside it. If I create a section of the form using "type": "object" on the schema, is it possible to obtain the div where it's contained?

Thanks

[WhileTrueEndWhile]

You could use a configuration like this:

{
    "schema": {
        "type": "object",
        "properties": {
            "customFieldInstance": {
                "type": "string"
            }
        }
    },
    "options": {
        "view": {
            "fields": {
                "/customFieldInstance": {
                    "templates": {
                        "control": "<b>Loading...</b>"
                    }
                }
            }
        }
    },
    "postRender": function (topControl) {
        const customFieldInstance = topControl.childrenByPropertyId.customFieldInstance;
        const htmlElement = customFieldInstance.domEl;
        const value = customFieldInstance.getValue();
        // console.log(htmlElement, value)
        // $(htmlElement).text(value);
        // $(htmlElement).qrcode(value);
    },
    "data": {
        "customFieldInstance": "aabbccddeeff"
    }
}