Configuring preferences and options in Outlook.com
Hi Luke,
We understand that you want to use Quick Parts without having to click on Pop Outjust to make this feature available. However, as of the moment, the only way to access Quick Parts is to click on Pop Out. By this, we would suggest that you post your idea in Outlook UserVoice for Microsoft developers to attend to this feedback as this is a convenient way to make use of the features in Outlook.
We appreciate your kind understanding on this matter. Rest assured that we value your feedback in improving our services.
Should you need anything else, do no hesitate to get back to us.