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Next to “Simulate” and “Reset” you will find small triangles. A click reveals submenus:
Simulation Submenu
The main entries here concern RealFlow's → command line version, and the → “Simulation Options”. Since both tools require further explanation they are discussed separately. Please follow the links above for more information.
Reset to Initial State Submenu
An initial state preserves a node's current simulation state. You can create this initial state from any simulated frame, and RealFlow will store a file in a separate folder (“initial state”) of the project. Please bear in mind that it is not possible to create initial states for all scene nodes at once, but they have to be created individually:
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