Hi
Normally when you perform any changes, the data in the form will be editable. You can use adaption to change it in display mode. This is useful if you want to display data for specific UIBB and change the other UIBB data.
In case if you don't want the user to change any data then you can control it through workflow steps. Go to process modelling - change requests - Edit status of change request - here you can change the status for each step to Change of object list or no processing.
Hope this clarify your doubt.
Kiran