Is there no page for the list of the Task-List Templates?

Is there no page for the list of the Task-List Templates?

I DO NOT MEAN WITHIN A SPECIFIC PROJECT. I am looking for a general main page where I can add/edit/delete task template lists. Where do they save to after I create them? I can view all projects on the project page, and all tasks on the task page. So where is the page for Task-List templates? This would be convenient for making edits, adding, or removing templates. So far I have not found such a page. The only place I can view them is in the drop down menu when adding them to a project.

We need this because:
  1. By mistake, we have 3 templates with the same name. Two are blank. It is irritating/time consuming trying to add the correct one. I'd like to be able to just delete the two empty ones.
  2. Some of our templates contain errors. I'd like to be able to select the problem template from a master list, edit the error, and have it automatically adjust in any project containing that template.
  3. When we think of another task to add to a template, I'd like to be able to just add it to the template on a master list, and have it automatically populate in any project containing that template.
  4. If we have to make any kind of change, it would have to be done on every project individually which just isn't practical or a good use of time.
If such a page exists OUTSIDE of specific projects, please can somebody direct me?