Ribbon and table contextual actions

We are redesigning a desktop app and adding a Ribbon with all actions (decision was made buy other people and won't change).

Some of the pages have tables.If the value is textual or numerical, it is easy to add inline editing. However, when the value is a date range (or any other action that requires more information), we need to decide whether to enable: * Only edit a line from the toolbar * Date icon in the cell that you can click to enable editing * Date icon that is displayed in the cell when hovering, and you click to edit *Edit icon that appears to the right of the row when hovering

Which would you prefer and why? If you have any examples of web/desktop apps that have ribbons, thta would be great to see examples.

Thanks!