Add ability to set CommandValueId on button elements
It is currently not possible to set the CommandValueId attribute on a button element. This attribute is very useful on menu items as it can be passed in as a command parameter by CRM which allows a command to be reused for multiple but similar scenarios.
Jonas Rapp commented
As an addition to this I just noticed that existing buttons that use the CommandValueId loses this attribute after updating the ribbon using RibbonWorkBench!