Rotate function for selector and undo & redo for all actions

Job ID: 35638209

Budget: $30 – $250 USD

Hello,
There is an open source WBO whiteboard app here: https://github.com/lovasoa/whitebophir
I want to add undo redo function to this whiteboard for all operations, including those that require the use of the array, for example, deleting or transforming a group of objects.
The second thing is rotate function for selector. The ability to rotate an object or a group of objects should be 360 degrees.
Related categories: JavaScript CSS HTML5 Node.js Socket IO