Adding and editing reaction arrows
Select the reaction arrow tool in the toolbar. Click and drag to add a simple reaction arrow.
By clicking on an existing arrow you can change between simple and equilibrium arrow.
By rigth-clicking on an arrow a popover panel is shown where more attributes like color, linewidth and type can be set.
By selecting the selection frame tool in the toolbar and clicking on an arrow the length and arrow tip can be changed with controlpoints.
Adding a plus sign
Select the plus sign tool in the toolbar. Click in the drawing area to add a plus sign.
By rigth-clicking on a plus sign a popover panel is shown where more attributes like color, linewidth and type can be set.