Clicking on Sepal in the Flower Parts drop-down menu will add it to the Flower Layers list.

When Sepal is highlighted in this list, the following attributes will all be accessible.

Main tab

Count

The number of sepals can be increased or decreased.

Sepal Count setting of 3.

Count of 7, giving seven sepals.

Radius

This slider will adjust the radius of the sepals.

Position

The position of the sepals can be raised or lowered.

Layers

This is set to one layer, by default, but you can add more layers, which will have an identical number of sepals.

Layer Step

Increasing this will place a gap between the sepal layers.