Hi Developer,
1. It is possible to change the key combination to see the Code Snippets using the RegisteringDefaultKeyBindings event. I have attached a sample that illustrates this. Let me know if this meets your requirements.
sample2. I am afraid, this feature is currently not available in the EditControl. We have considered this as feature request and will notify you when the feature has been implemented.
Thank you for using Syncfusion products.
Regards,
Ebenezer.P