hi
I am not sure but from IMG you can find the following details which may be useful for Screen enhancement for work clearance document
BAdI: Work Clearance Document
Use
This Business Add-In (BAdI) is used in the Work Clearance Management (PM-WCM) component.
You can use this BAdI to extend the screen for work clearance documents.
This BAdI uses the following methods:
Standard settings
In the standard system there is no default implementation available and active.
The BAdI is not designed for multiple use.
The BAdI is filter-dependent. Create an implementation for each planning plant you require.
Activities
Information about the implementation of BAdIs in the context of the enhancement concept is available in the SAP Library for SAP NetWeaver under BAdIs - Embedding in the Enhancement Framework.
See also
For more information, see the documentation for the methods.
Regards
Thyagarajan





