NX About "EndCondition" and "ThreadForm" column in NX_Thread_Standard.xml file

What is the use case of "EndCondition” and “ThreadForm” options available in NX_Thread_Standard.xml file.

“EndCondition”: This flag was there to specify the thread feature’s end condition/settings (full/partial or to set thread direction opposite to cylindrical face axis direction).

The latest new threads do not use it from standard though.

“ThreadForm”: Previously the standards of the thread feature were different from the threaded hole standard. This column was used to get the corresponding standard of thread feature from the threaded hole standard.

Now, both of these flags are not used for new threaded holes as well as thread features from standard. These columns are may be needed for the update of old threaded holes so still available in "NX_Thread_Standard.xml" file.