Not getting option for inserting rel table

I am following instructions for DITA relationship tables from the Adobe Framemaker 2019 release guide and do not see the "rel table" option in Elements. I have tried inserting one on each level, so that's not the issue. I have also tried inserting a regular table, but that is not giving the type option for Topic, Task, Concept, etc. I am using Framemaker 15.0.4.751. Any help is appreciated!