I have the EF100 but I think it's similar. I don't think there's one answer to the "How do I do macro?" question, but one way I use that setup is with a tripod and with the use of in-camera focus bracketing and compositing.
Focus bracketing is where the camera steps the focus gradually away to cover the subject as it continuously shoots. The R7 does this; you need to be in AF and when you enable focus bracketing the camera will use the electronic shutter. You can keep the default increment of 4, at least for learning.
Compositing is the assembling of the stack of images into one with greater depth of field, The R7 does this in-camera, which is VERY useful, but you have to enable it.
There are also settings for focus and exposure breathing that you can ignore for now.
Just go try it. Choose an aperture between f/5.6 and f/11 to make it easier for the camera. Shutter speed and ISO to get a good exposure. Set up on a subject like... a key, or the end of a pencil, or the end of a ruler, or pretty much ANYTHING and start with your focus on the closest part of it. Be as close as you can be, like just barely over MFD. Use plenty of shots (like 50 or more) and watch the viewfinder after you press the shutter and you will see the focus walk back across the object as the camera shoots. When it is past where you need it, you can press the shutter again to stop. Then it will try to make a composite image. It may actually fail to do that if it doesn't detect enough contrast, but you can stack them in DPP or some other software. Or try the shot again with more light and a subject with more definition. You're not going to break anything, just try stuff. You can delete it all when you're done.
