1.Right Click to New Step,Show Macros and Clear Canvas

New Step: add a new step in workflow
Macros: show all macros in workflow
Layout: change the direction of flow graph
Clear: clear canvas

2.Enter Step Name and Command Lines

(1) StepName can only be composed of lowercase letters, numbers and underscores.
(2) Command lines to be run in this step should be typed in CommandLine edit box which use #XXX# to indicate a macro, <XXX> to indicate the inputs of the step and [XXX] to indicate the outputs.

3.Macros

#MACRO# field is used to define a macro which can only be compose of uppercase letters, numbers and underscores.

4.Export/Import

Export: save the edited workflow to a JSON file and submit it to GPyFlow-CLI to run.
Import: import the JSON file to render a workflow.