export or review only selected color annottaions

Dear Liner Team,

I know we have a filter of color for all Highlights in all pages, but I do hope Liner could add a color filter also for every specific page/article to review and export.

REASONS: 

1. When I am reading, I do need different colors to mark, like using Green for a new word, Blue for a good example, Red for a topic sentence, and so on.

But when I review the page on Liner, or export the annotations to use,

I'd like to, for example, only focus on Green annotations for vocabulary accumulation, or on Red to see the whole picture of the article.

2. As the amount of read pages increases, the color filter for all Highlight in all pages is becoming less important. Because even as I filter out the Red annotations, they are different parts from different pages likely over totally different topics.

So I do hope Liner could add a filter for the specific page to review and export.

Thank you so much!

Best Wishes

Raphael