I know of no way to do it on one root partition. But, you can install as many SUSE instances as you can create partitions.
For instance, create one partition as root when you install SUSE, and leave a large portion of the rest of the drive unpartitioned. Then, proceed through the full installation again, this time ignoring the root partition you created last time and create instead a *NEW* root partition out of that remaining free space you left earlier. Continue looping through this process until you are 1) satisfied with the number of SUSE installations you have, or 2) run out of partitions.
In this scenario, I would recommend using just one home partition and configuring each installation to look to it instead of crafting its own. Then, you can opt to boot into a different SUSE if one should fail and you would still have access to all of your preferences and documents.
Does that make sense?