Setting maximum position by external entity

[mlstolk]

Checklist

• [X] I have filled out the template to the best of my ability.
• [X] This only contains 1 feature request (if you have multiple feature requests, open one feature request for each feature request).
• [X] This issue is not a duplicate feature request of previous feature requests.

Is your feature request related to a problem? Please describe.

There are some scenarios in which I would like to dynamically set the maximum position (and potentially the default position), e.g. from an automation that restricts my horizontal awning from going out all the way with gusty weather. As far as I can tell, there is currently no way to adjust these settings during runtime.

Describe the solution you'd like

I think the most convenient way would be to add (optional) fields for assigning entities to the maximum position configuration parameter (and maybe default position as well).

Describe alternatives you've considered

n/a

Additional context

n/a