No rename options. You accept the warning, pick your size and click OK. The original is replaced.
see now, what I'd really like is for MC to resize (or otherwise alter) the original image, preserve the original, and create a link between the two (or three, or more) images, with the option to only show the most current edit, or see all images in the set.
I've got quite close to this manually using a bat file, auto import and some creative view construction, but it would be oh so sweet to have MC manage these things auto-magically.
bigmikey,
have you considered using MC's "Send to... > External" options?
While MC12 has seen gigantic strides forward in the image handling department, there is still some considerable way to go before "Send to... > AcdSee" falls off my right click MRU list.
This could potentially introduce another problem however, because after saving an edited image, either over itself or as a new file, the tag info is not retained within the file. My workaround here is to use "Send to..." to send the file to a bat file which makes a copy of the file, then send that file to either AcdSee or Photoshop. Generally, while editing the file, MC gets busy in the background importing the new file and all the tags it contains, so, after saving the edited image, all that's needed to write the tags back to the new file is an "Update tags from library"