There are ways around.
Using grub legacy from AntiX to control your MBR is one such way.
Then chainload all other OS from antiX.
For simplicity, antiX will then provides its own regular and safe mode, the rest of OS will have ONE line only.
Each time when computer boots up, you get antiX grub legacy screen ( nice wall paper there) , if you want to run LMDE, choose it and it will chainload to LMDE grub2 menu, which has a few lines ( up to you to keep, usually two for each kernels, you can always delete the unused kernel and get it neater).
The advantage for using grub legacy is, your grub menu will be fixed by you, it will not change until you want to.
For the Debian based and straight Debian, each time you upgrade a kernel, there will be two more lines added, as time goes by you can have 10-20 lines for just LMDE or Debian.
If you like to use grub legacy to control MBR, I can help provide more details on how to do so.