I’ve been struggling to use the mouse as a brush or an eraser in Photoshop on my iMac Retina with any accuracy but I’d forgotten how to set up Sidecar – the facility that enables you to use an iPad as a second screen for your Mac.
For screen mirroring, this is how it works:
- In Systems Preferences on the iMac go to ‘Displays’
- Click ‘Add Display’
- Select ‘iPad’ and ‘Mirror and extend’
At this stage the screen on my iMac transforms itself to fit the narrower proportions of the iPad and the whole set up works as I’d expect it to: I can use the Mac’s mouse pretty much as normal and I can use the Apple Pencil on the iPad for the brush or eraser in Photoshop.
Note: Mac and iPad are connected to the same wifi network. In the settings the iPad ‘Handoff’ is enabled.
