HI, experts:
In APEX 20.1,
The Create Master Detail style pages is really a wonderful feature and there are some good examples in App Gallery.
I tried one today, but encounter a question as show in the following image:

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The Project record which is in an Interactive Grid can be shown in Single Row View with an elegant layout
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But the Milestons' record (they do have contents) which is also in an interactive Grid will be shown blank when change to Single Row View.

Can the above Milestons' record be shown in Single Row View?
Thanks !