yes to do it without uploading the images elsewhere you have to first upload the image and then edit your post afterwards, clicking the image to expand the thumbnail, then right clicking and copying the images url and then editing your post and pasting the url into where its needed to be.. its a bit tricky to do it the first time but once youve done it its very easy to do again and again
it might be easier for some to use an img uploading service such as
https://imgbb.com/which lets u upload an image anonymously and then gives you a url to post that image elsewhere on the internet:
https://ibb.co/******
to publish pages of combined text + images
you should use this technique, using the full editor here on macos9lives
you can use the img button, to insert the tags and then paste the url
at the location in the message body that you are writing/publishing