what config vars are needed for using a template dgnws file

been messing around with this for a while now and just cant seem to find good information on this.

I set up a sheet index with default folders. I now want to use this as the template dgnws file so if one ever gets deleted for a workset this one will be used so the default folders are there.

so it works fine when creating a new workset as I just select the template workset like this...

when I open a file and look at the sheet index I have the folders I expect..all is good.

but now lets saw for some reason that dgnws file gets deleted. the next time I open microstation the dgnws gets re-created. but now it looks like this...

which is not right. the TEST_WORKSET line in the image above is blank and the 000000_OHDOT_Template one has all the default folders.

So my question is I must have something wrong in the configuration but when looking at all the variables I'm a little bit confused what needs to be set..here is what I have set..

_USTN_WORKSETDGNWSTEMPLATE I have this set to the 000000_OHDOT_TEMPLATE.dgnws file in my cadd standards at the workspace level

_USTN_TEMPLATEWORKSETNAME I have this set to the value 000000_OHDOT_TEMPLATE. (I also tried it with this undefined and got the same results)

I see things like _USTN_WORKSETDGNWSROOT (which is undefined for me) and USTN_WORKSETTEMPLATE that points to some WorkSet.Template file (not sure what that's used for)

but nothing is really jumping out at me. any one else running into this problem or have any suggestions.