How to set function of onRight from another screen on scene router

[elvis-hp]

In router.is, I have:
<Scene key="tabEditProfile" onRight={() => {this.updateProfile()}} rightTitle="Save" component={EditProfile} icon={TabIcon} renderTitle="Edit your profile" hideTabBar swipeEnabled={false}/>
but this.updateProfile() only in screen edit-profile.js.
Who can help me how to call updateProfile funcation from edit-profile.js.
Thank's.

Version

Tell us which versions you are using:

• react-native-router-flux v4.?.? (v3 is not supported)
• react-native v0.?.?

Expected behaviour

Actual behaviour

Steps to reproduce

For non-obvious bugs, please fork this component, modify Example project to reproduce your issue and include link here.
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[elvis-hp]

fixed:
on the edit-profile.js
componentDidMount() { this.props.navigation.setParams({onRight: this.updateProfile }); }