There are two colored signs in front of each option.
<br>
R stands for RAMPS board and D stands for Direct Control.<br>
Based on the device type and the color guide below, you can decide if the option is important to your specific setup.
<br>
<div class="color_1">Required</div>
<div class="color_2">Important but Skippable</div>
<div class="color_3">Not Important</div>
<div class="color_4">Not Applicable or Rarely Would be Used</div>	