Images can be added to an email/document template by following the below steps:
Go to 'Communication' > 'Email/Document Templates' > Select Template > Select Pencil Icon to edit template. See below:
You will then be able to amend the template. Images can be uploaded and added to the template by selecting 'Practice Images'. See below:
Once you have uploaded the image, you will then be able to add it to the template by selecting the uploaded image. (See above). Once you have selected the image, it will then add to the template where the image size can be increased and it can also be aligned. See below:
Once you are happy with your template, simply select 'Save' and this will update the template.