[Plugin: Advanced Excerpt] Possible to Exclude certain posts?

It is currently not possible to specify custom settings per post or tell the plugin to ignore specific posts. Unless they have a manual excerpt, which can be used instead if you change the relevant settings.

However, there are some ways to use the plugin differently in themes. If you are a theme developer you should use the_advanced_excerpt() (see FAQ) for that. You can call it with different parameters (or do something else) based on certain conditions (eg. the_ID equals a certain number, a certain post_meta is set, any of the theme conditionals, etc.) which you will have to code yourself.

This is slightly advanced stuff that a developer will know how to do, so I am not going to explain it in detail. The short answer to your question is still basically ‘no’.