The suffixes that Limber applies to your layer names - Ankle, Hip and Leg in the image above, are stored as presets. To add a new preset, click on the + button. To remove a preset, select one and click on the - button. To edit a preset, select it from the list and then click and edit the textfields on the right. You can change the display order of presets by clicking the up or down buttons. Presets are saved locally when you hit OK.