Studio now enables you to map entitlements for the 'action' buttons while creating an app. This means that depending on the user entitlements, these buttons will be visible or hidden to the user. An example screen shot of the action buttons in an app is as follows: 
Figure 19: App with action button
For more information on this feature, refer the Creating Apps section in Canvas Technology 18.1 - Expert Studio Dev Guide.pdf OR You can also refer the Canvas Technology 18.1 - App Designer Documents.
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