>Since I can´t visually handle a view with more than 2 tables, I decided to create a new view using commands.
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>Some properties, like SendUpdates, may be set using DbSetProp.
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>But I don´t know how to define the key and updatable fields from the command window and make them persistent (store that in the db).
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>Do I have to set these properties each time the view is opened using cursorsetprop?
>

No, you define the properties once. Ko has given you examples of how to do this. You can also run GenDBC on an existing DBC to generate code that shows you what to do.