 In Bookmap, if you want to zoom into a precisely controlled area, you can use the Zoom by Drag tool by clicking on this icon here. Now, in the viewable chart, pinpoint your area of interest and left-click Hold and drag the mouse over to the next area. Note the green vertical dotted lines that define my zooming area of interest. Once the mouse button is released, Bookmap zooms in and precisely displays that particular area within the viewable chart range. Note I remain in Zoom by Drag mode. This allows me to quickly zoom into another precise area for studying further details. If you want to zoom back out to the previous area, press Ctrl Z. If I press Ctrl Z once again, I zoom out to my original view and click on the Zoom by Drag tool to deactivate it. So far we've demoed how to precisely zoom horizontally. You can also zoom horizontally and vertically. To do so, first let's right-click in the price ladder and select Recenter None. Now let's use the Zoom by Drag tool again. Left-click Hold and now note the green dotted lines create a rectangular window to outline the area for zooming. Once I release the mouse button, I zoom into that precise area. Press Ctrl Z once to zoom back out, then once again to return to your previous recentering settings. Since most users zoom using their center mouse wheel, you can save some toolbar space by not displaying the magnifying glass tools. To do so, go to Settings, Configuration and uncheck the Show Zoom buttons.