Book specific conversion settings

Whenever I override the Conversion settings for a specific book I add 'conv-set' in the book's #admin-tags column… but I sometimes forget to do that

And if I revert to the Preferences settings more often than not I forget to remove 'conv-set' from #admin_tags.

So, at irregular intervals I eyeball the results of a search for #admin_tags:"=conv-set" alongside the 'conversion_options' table in metadata_db. and make necessary corrections in the #admin-tags column.

Can anyone suggest an easier, preferably automatic way to achieve the same result

I looked in the template function doco, and JobSpy; and AFAICT Action Chains is unaware of what happens within the child windows of the Convert Book dialogue.

BR