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How to change Niagara Emitter particle mass over time?

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    How to change Niagara Emitter particle mass over time?

    Hi,

    I am having a hard time trying to figure out how to change Niagara particle mass over time. There are only 3 modules concerning mass: One that calculates mass by volume, other that calculates size by mass, and third that updates velocity on mass change. But I can't find anything like set mass or scale mass.

    I am trying to create a simple smoke column simulation but physically based. I've initialized the particle size by "Calculate Size and Rotational Inertia by Mass" using very low mass value (soot in air). I would like to achieve the result of the smoke sprites naturally expanding by slowly reducing mass parameter (Density (kg/m^3)) over time and reCalculating Size and Rotational Inertia by Mass in the particle update loop, therefore simulating dissipation of soot in the air.

    But no matter what I do, I can't figure out how to scale mass over time.

    Any help will be appreciated.

    Thank you
    https://www.artstation.com/artist/rawalanche
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