I am learning TYPO3 and extensions, for now, I've created a test extension about image uploading, handling and showing.
I have done the Backend for upload a new image, show a list, and edit image properties (once selected). This part is already implemented and working.
Now I am missing the "include" part, I mean, to insert an image in page via Insert Plugin on BackEnd.
My problem: When I select insert plugin, and I manually select my registered plugin, I want to render there a fluid template with options, image list, and so. These options are for the user to select an image, a size, and so, for it to be shown in selected page.
I don't know which method have typo3 for showing templates in that part, so I am requesting a hint from where to config a template to be used there by TYPO3.
Note: This is not about asking implementations, just a hint to start and implement it myself.