We recently added a template would l like to apply it to multiple existing documents.
How to insert template to existing document
Best answer by gwingate
Hi all, just jumping in to give an update on this feature. It is now possible to add templates into pages directly from the document. You will first select the Template Gallery on the Left hand ribbon:

Then select the template you would like to insert (make sure you have selected the page you would like the template to be inserted onto before selecting the template):

This user specifically could use the ‘Created by me’ section to find their personal templates, but any template can be used. You can search for the template your looking for with the search bar or browse with the left hand menu. Once you have picked a template, insert it by selecting ‘Insert” or preview it with the eye icon. Hope this helps!
Create an account in the community
A Lucid account is required to interact with the Community, and your participation is subject to the Supplemental Lucid Community Terms. You may not participate in the Community if you are under age 18. You will be redirected to the Lucid app to log in.
Log in to the community
A Lucid account is required to interact with the Community, and your participation is subject to the Supplemental Lucid Community Terms. You may not participate in the Community if you are under age 18. You will be redirected to the Lucid app to log in.
Log in with Lucid
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.