How to create a static module

[TMisuna]

I know HubSpot has drag-and-drop content (dnd_module), but do you know how to create a module when creating a module that has a fixed amount of content on that page, like a WordPress custom field?

For example
I have a slider on the first view of the top page.
If you create a custom module like “slider” and set up an image field, you can rewrite only the source of the image inside the slider.
If we create a custom module, it can be dragged and dropped from the theme as drag-and-drop content, but we want to hide it from this panel.
I would like to hide the module from this panel.

Sorry, but thank you in advance.

[matt_scott]

Create it as custom module, and then uncheck this box, you can still use it in code, but it’s not accessible from the front end

[TMisuna]

Thank you for your valuable response.
I am surprised to know that it is easier than I thought to hide them.
And I can hide it and copy it from the snippet area on my template and embed it in the template.