Present records to associate it to based on email/event contents - contacts, opps, etc.

Present relevant fields - your custom picklist.

In your use case, you'd have to create a LWC to replicate the whole process and remove the standard functionality. Your component will do whatever it is you tell it to do but it will not tie in to any other standard/out-of-the-box functionality (like the 'log email' button as you're asking). Fortunately, Revenue Grid helps you solve all the problems you might have when using Salesforce for Outlook. That means you still have to switch between Salesforce and Outlook to get that information. However, that's where it really ends as the rest is up to you to handle in the component. Another worthy note is that Salesforce Outlook Integration doesn’t sync some types of data, for example, opportunities, calls, and meetings.

That page, in your screenshot, is what you can add your own custom lightning components to following the documentation Has anyone succesfully deployed single sign on for the Salesforce for Outlook plugin Weve setup SDP initiated SSO, and it is working correctly from the. Then click on the Outlook Integration and Lightning Sync buttons to enable it.

You're limited in what you can edit on the Outlook side-panel. In the Fast Find Box, type Outlook and then select Outlook Integration and Sync.

Salesforce for outlook plugin