Tools used for editing ITS iViews in EP 7.0, 2004s in ECC 6.0

Dear gurus,

We are migrating some of the ITS based iViews from EP6.0 to EP7.0 on 2004s for ESS/MSS implementation in ECC 6.0. I would like to customize these iViews to display/hide some of the links in the ITS iViews/templates. I know that WebStudio is used for customizing the ITS iViews in the past. Is it still being supported by SAP or is there any tool in the ABAP workbench that I can use to modify the ITS iViews/templates. Can you please share your ideas here.

Thanks!

Vivek.