Adding Pseudo Effect Without Restarting

the "standard" way of creating pseudo effects (sometimes called custom controls) edit preset effects.xml file, seems there's way add custom controls without doing (at least in ae cc 2015).

 

is there way load xml right effect via scripting? like:

 

var pseudoeffect = <effect matchname="pseudo/customeffect" name="$$$/ae/preset/customeffect=customeffect">

    <group name="$$$/ae/preset/1=1">

        <slider name="$$$/ae/preset/2=2" default="0" valid_min="-100" valid_max="100" slider_min="0" slider_max="100" precision="1"/>

        <slider name="$$$/ae/preset/3=3" default="0" valid_min="-100" valid_max="100" slider_min="0" slider_max="100" precision="1"/>

    </group>

</effect>;

 

app.project.activeitem.layer(1).effect.addproperty(pseudoeffect);

 

or there way create ffx file via scripting, , load effect?

but seems there's way add custom controls without doing (at least in ae cc 2015).

where have seen this?

 

as far know has loaded through preseteffects.xml document on app load. sure controls seeing not expression control effects renamed?

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