[Wear OS General] Kinsman-UK:
Just to update on this and provide an alternate method...

First of all, I did purchase the paid version of 'Wearable Widgets', and it does indeed allow me to wake multiple PCs using separate widgets for each one from the Wake-On-Lan app. Another benefit of this is that I can now also add a widget from my 'FTP Server Pro' app (https://play.google.com/store/apps/details?id=com.theolivetree.ftpserverpro&hl=en), which allows me to start the FTP Server on my phone from my watch - so that I can backup my phone over WiFi or transfer files over to it from my PC without having to touch the phone.

An alternate method for the Wake-On-Lan process is to follow the steps as above in post 1, but instead of using 'Wearable Widgets' use the 'Notification Toggle' app (https://play.google.com/store/apps/details?id=de.j4velin.notificationToggle) - and for this method you must purchase the Shortcuts feature from within the app.

This app allows you to have toggles for WiFi, Bluetooth, Silent, Vibration etc on your watch, so that you can control all of these features on your phone without having to take it out. The paid-for Shortcuts feature allows you to add Shortcuts from any app on your phone to your watch. So, as the Wake-On-Lan app mentioned above allows both Widgets and Shortcuts for waking an individual PC, we can add a WOL Shortcut to our watch. You can also add multiple Shortcuts (from any app that supports them) to your watch (for example, I also added a Greenify shortcut).

1) Load Notification Toggle on your phone and navigate to the Premium Features section. Assuming you have purchased this, tap on where it says 'click here' to see shortcuts. Tap on the shortcut you want to add (in our case 'Wake on LAN Shortcut') and configure it.

2) The app will automatically add the Shortcut to your notification drawer on your phone, so if you don't want it there go to the third screen of the app and remove the tick beside the shortcut you don't want on your phone. (Note that you can turn off all other features of the app if you don't want to use the phone end of the Notification Toggles, simply remove the ticks from all toggles on screens 2 and 3).

3) Navigate to the Android Wear section (screen 4, first button).

4) In the list of Toggles for Android Wear you'll see your Shortcut(s), put a tick beside each one you want to appear on your watch. You can also set the order of the toggles by going back one screen and choosing 'Change Toggle Order'.

5) On your watch, go to the app drawer and start Notification Toggle. Swipe to and tap the appropriate Shortcut toggle to turn on the PC.

This is a bit more complicated to set up than the previous method, but has the benefit that you can have a WiFi toggle right next to the WOL Shortcut on your watch. So, for example, if you've been out and about with WiFi off on your phone, you can pull into the driveway, tap the WiFi toggle on your watch to activate WiFi on your phone, and then wake the PC.

If you have Pujie Black or another watch face with shortcut hot spots, you can set one of these up to launch Wearable Widgets or Notification Toggle to make things even quicker. I find that Notification Toggle loads slightly quicker on the watch than Wearable Widgets, but there's not much difference. This method (with Notification Toggles) is probably slightly better, but I still like having Wearable Widgets on my watch as there are some phone widgets which are handy to have on your wrist.