Newsletter

Hi, Love the Groups plugin with the PayPal option – it does exactly what I want!
However, I have also purchased the Newsletter add-on and I have some questions.
I want to send newsletters, by email, to either some or all members of my various groups. There emails can only be sent by admin or group leaders.
I am having a problem with editing the newsletters. I really need to do it as easily as possible, as a number of members are not at all computer literate. I therefore would like to generate various templates for use. I can’t see how to design a template with different elements such as coloured text, font changes, images etc. without using WP editor.
Is there a way of designing and saving a template in Elementor?
Many thanks,
Kelvin