Adding templates to row canvas when page is locked

I created a template for my company to use and added it to my workspace. We want to use this template in a canvas column for a row on a locked page. I can use the template by typing the slash command followed by the template name when the page is unlocked. But when the page is locked, the slash command to get the template does not appear.

We need to have the page locked for various reasons, but we also need templates to work in the row canvas. Since people are able to type in the row canvas when the page is locked, I think templates should work under the same circumstances, so I think this is a bug.