We are already adding a front end update for the Auto and Property Components.
Changing mandatory fields can be done from the administrator/components/views/auto/tmpl directory in the form.form.xml file for instance. All mandatory fields are marked required="true". Please keep in mind that we may not support some aspects of customized code.
When you add your first dealer the component will have that dealer first in the selection dropdown always and list each dealer after that in the order that they were added when you add a new vehicle. You may wish to clarify more of where you are looking for this to be done so that coding can understand specifically what you would like so they could possibly add it to our update.
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