Wheel Mouse Scaling

A wheel mouse is a mouse that is equipped with a wheel between the mouse keys:

Wheel mice are made by many manufacturers. Generally speaking, any mouse equipped with a wheel between the keys is capable of scaling charts.

To scale a chart with the wheel, position the pointer over the areas emphasized in the figure below:

Wheel mouse scaling affords both scrolling and compression capabilities that correspond to the wheel's two modes. To scroll, move the wheel without pressing it. To compress (or expand), move the wheel while pressing it.

Price Scaling

To scroll prices up, pull the wheel toward you. To scroll prices down, push the wheel away from you.

To decrease price granularity, pull the wheel toward you while applying pressure to the wheel. To increase price granularity, push the wheel away from you while depressing it.

Time Scaling

To scroll the time frame into the future, pull the wheel toward you. To scroll the time frame into the past, push the wheel away from you.

To compress the time frame, pull the wheel toward you while applying pressure to the wheel. To expand the time frame, push the wheel away from you while depressing it.

Grabbing The Scale

You can grab the price or time scale by positioning the mouse pointer in the areas shown above and holding down the left mouse key. Do this without moving the mouse and a box will appear next to the mouse pointer. When the box appears you can drag the time scale left or right, or the price scale up and down.

Grabbing With The Mouse Wheel

To scale with the mouse wheel, position the pointer anywhere in the chart and then hold the mouse wheel down and drag up or down, left or right. The initial drag direction determines which scale is affected. Drag up or down and the price scale is adjusted. Drag left or right, and the time scale changes.

Restoring Default Scaling

To restore auto scale, position the pointer over the price or time scale and double-click the left mouse key.