yeah, currently the keygrid and drumpad elements are so similar , you wonder why they are different 
perhaps the difference should be the drumpad has freely assignable notes - though without a scale you’d not be able to slide between notes , though for percussion not really an issue.
or perhaps keygrid/drumpad, could allow for a reversed layout…
Id drop an email to @embodme to discuss it with them.
in the meantime… can you use one of the buttons elements ?
@keymanpal , did some testing in this post , and found you can use 48 ‘simpler’ elements.
(whereas only 4 of the more complex elements like drumpad/keypad)
again, something that no doubt could be discussed with Embodme, if there are problems in that area.