Windchill Parameters for Approved an Checked Drawings

[FLH_ACE]

Hello,
I hope you can help me.
I'm looking for the appropriate parameters to note on the drawing who checked and approved the drawing and when it was made.
I have already found the parameter for the creator (&PTC_WM_CREATED_ON and &PTC_WM_CREATED_BY) and am now looking for the parameters mentined above.
thank you in advance.

[BenLoosli]

There are none.

We carry those as drawing parameters only using a restricted _params.txt file to limit the names that may be used.

[FLH_ACE]

Okay. 

I think we will just let it open to let them put their names and dates inside.

Thanks for yoru fast supply.