The Colour Watcher Help page

There are rather a large number of options, so that you can run the Watchers in various modes to suit your purpose.

The program remembers which clocks you want to watch, which colour space to show in the task bar, your sample size and whether you want the Magnifier to run at start up. These settings are written to a baby file each time you close a Watcher.

I guess the main reason you have come here is to know how to set a monitor point. Well you need to select the Watcher, then move the mouse to where you want to monitor (with/without the Magnifier - toggle with 'm') and then press the spacebar. The Watcher will then behave as normal and options can be changed, or the Watcher moved - the only difference is that it will not follow the mouse.

To stop monitoring, select the Watcher and press the spacebar. The mouse will jump to the original point, so you could move it a bit and select again (using the spacebar).

Nearly all options can be selected just using a Key (with/without the Alt or Ctrl key) or by using the pop-up Menu.

Main Option	Sub-menu	Key	Notes
Sample Size			Remember this is screen pixels, not image pixels (unless you are at 100%). Always best to view images at fixed sizes of 25, 50 & 100% in Photoshop to stop rounding errors.
	Single
	3 x 3 - default
	5 x 5
Number > Top Bar			What values to show in the Task Bar and System Tray
	RGB
	Lab
	HSB
	CMYK
Show			- basic display configuration
	Point to monitor place	P	Draws a line to the monitor point
	Magnifier	M	Shows the Magnifier - goes from x2 to x8, with circle in the middle to show mouse position
	+ Increases magnification	+	Just use the +/- keys. Note that Control & +/- changes the display size (just like Photoshop).
	- Reduces magnification	-
	Hue clock	H	Most important clock to see
	Lab clock	L	Interesting and sometimes helpful
	RGB clock	R	Purely for interest?
Magnifier Display Mode
	Normal colours	N	Shows the image normally
	Black - to set Shadow point	B	You have the best point when all is black
	White - to set HighLight point	W	Ditto, when all is white
SpaceBar starts/stops point monitoring			While the Watcher program is selected, move mouse to desired point and then press the SpaceBar. Pressing again releases the point and jumps the mouse where it was, just in case you want to move it slightly by pressing SpaceBar again!
Window Size
	Bigger (Cntrl +)		Increases the display by a factor of 2
	Smaller (Cntrl -)		Reduces the display size by 2
	Tiny	T	Make window thinner, by not showing the HSB values
	Minimize	Z	The same as the usual Minimize button
Stay Visible		V	Keep on top of all windows - default start up mode.

To use the clocks to help remove colour casts, you monitor a point and then move a channel curve to align the hand to near one of the major axis - Red, Green or Blue (or the ab axis), then change to that channel to remove the rest of the colour cast - really simple.