Form controls for dynamic charts: #1 spinner control, #2 slider/scroll control. Adding form controls to spreadsheets online would practically close the gap to share analysis / scenario spreadsheets. Please add the spinner control (first priority) and secondly the slider / scroll
Thank you for your suggestion and votes for Form Controls. There is currently no planned work for this as we are focusing on other feature areas. We will continue to accept votes on this and will notify you if our plans are updated.
Id like to add checkbox functionality, as many users use them for validation.
Michael Hutchens commented
Jose's request here is a little vague. More specifically, it would be great if Microsoft supported the use of Form Controls (which are accessed in the desktop version of Excel via the Developer tab as shown in the attached image) in Excel Online.
These controls are (and have always been) widely used by Excel desktop users, so it's debilitating that Excel workbooks containing form controls cannot be edited using Excel Online.
The same issue exists for comments, although I can see that you've deprecated these in favour of notes so that's not such a big issue.
I've added a post on MSDN about this issue here: https://social.msdn.microsoft.com/Forums/office/en-US/14e1d4af-7357-4e2f-8a1b-7c60fa9413c9/when-is-microsoft-going-to-add-support-for-controls-to-excel-online?forum=exceldev