Suggestion to enhance the spreadsheet feature in mindmanager

Mindmanager allow u to insert spreadsheet into a topic, which is great. But unfortunately, the spreadsheet is unable to merge and split cells. Wish this features could be added.

*Currently notes allow u to add tables which can merge and split cells (which are all my favourite features). So if the spreadsheet added to the topic also can do the same, it will be great!
I am not the fan of creating excel spreadsheet into the mind map, so i would hope the mindmanager spreadsheet feature can do many things that excel spreadsheet can do.