Most tools use sliders for changing values and applying adjustments. Wherever a slider is employed, a value field is also displayed. This can also be used to alter adjustments.
There are several ways to make adjustments with the sliders:
1. Click and drag the slider to the left or right to set a value.
Drag the slider to the right to increase the value or effect, drag the slider to the left to lower the value. As some sliders are centered, dragging a slider to the left usually applies a negative value.
2. Place the mouse cursor over a slider and use the scroll wheel function to fine-tune the settings.
Make sure that the cursor behavior is such by going to Preferences -> General and enabling the Scroll wheel changes slider value option. As you can concentrate on the image itself, this is a good method to make adjustments without referring back to the tool.
NOTE: Sliders have various value ranges, which depends on the parameter.
3. Click inside the value field next to the slider and type the desired number.
Changing values in small increments
Click inside the value field and use the page up/down arrows on the keyboard to alter the number by a small increment, typically 1 or 0.1, depending on the parameter.
Changing values in large increments
Click inside the value field, then click and hold the Shift key and use the page up/down arrows on the keyboard to alter the number by a larger increment. This is typically 10, though it can be 1, depending on the parameter.
NOTE: In Capture One 20, using the up/down arrow keys makes an effect only when you click inside the value field next to the slider. Consider that the up/down arrow keys do not work when changing the value by clicking on a slider itself (which was possible in the previous versions of Capture One).