Is possible to view the mask of the Simulink blocks?

Hi, I want to create professional-looking blocks and I want to see the callbacks and programming of some blocks, as examples. It is possible?

Thanks in advance

[TAB]

Do you want to display the callbacks and programming of masked subsystem blocks on the same block?

Answer 1

[Kaustubha Govind]

Sure you can, right-click on the block and select "View Mask" - the option is disabled for blocks that are not masked. You can select "Look Under Mask" to see how the block has been implemented.

[Carlos]

but I can only see the simple masks. Those that are very well done can not be seen

[Kaustubha Govind]

It's not clear what you mean by this. Can you specify an example from the Simulink library?