Yes, start by going to Workspace > Email Marketing > Templates. Once you have your template picked out, click on Blocks or Content on the right-hand side and search for Video (see image below.) Now click and drag the video icon to place it into your email. After this, double-click on the video image and insert your video's URL. Your video will then appear in the email template. 


If the YouTube video image displays like the following (in DonorView this is the Source Url), you may need to add a static video image (thumbnail) to the YouTube video. Here is a link to a YouTube help article, Add video thumbnails.



https://img.youtube.com/vi/6uecFirb4T4/maxresdefault.jpg


Vimeo video image.



 Click on Blocks or Content on the right-hand side and search for Image (see image below.) Now click and drag the image icon to place it into your email.



Select an image to insert and paste the URL for the Vimeo video into the Link Url field.