Show Popup / Dialog - View in CRM Actions

Hi,

I am upgrading from CRM 5.0 to CRM 7.02. I have actions using BADI EXEC_METHODCALL_PPF which trigger a popup to request user input in certain cases. It seems to me that there is nothing appropriate in 7.0.

I found:

- note SAP Note 1399145 - CRM FS Actions are not working properly in Web UI

- Thread /thread/1143346

- SAP Help help.sap.com/saphelp_crm70/helpdata/en/1d/e5b2eefedf463bbd1775be264b0ae7/content.htm?frameset=/en/59/df8bff52c24057919ddd9dde52e457/frameset.htm

I found the customizing node:

     Customer Relationship management->Basic Functions->Actions->Actions in Transactions->Set Up Dialog Box for Actions

But my impression is that is not possible to issue a popup like in 5.0. With  "Set up Dialog Box for Actions" in conjunction with note 1399145 it is only possible to issue a view as popup BEFORE the action is executed, but I need a way to do it within the action. But the PPF-Framework seems not to have changed so I have no information about the call from the web ui.

By the way: what is a model access class. Is this something specific to People Centric UI or is it used in Web UI as well?

Any help would be appreciated!

Regards,

Max