As another potential avenue, are there any existing web based spreadsheet/table applications that could be embedded as an item or a separate document in Dynalist? One issue I see with that is that the data would probably not be searchable within the native Dynalist search function. But it could be a good stop gap until another solution is found.
Regarding an idea of using one of the Java script modifiers to create tables using markdown or what not, there are some Java scripts available (specifically for Workflowy and one for the iOS counterpart Handyflowy (and this one only in Japanese)), which Iām assuming could be repurposed for Dynalist, but they are very clunky and defeat the purpose a bit.
See links below: