text: import React, { useState } from 'react';
  import { Box } from '@material-ui/core';
  import { view, store } from '@risingstack/react-easy-state';
  
  /** content inside left pane */
  const LeftPane = () => {
  	const [_state, _setState] = useState('value'); // react hook states
  	const lstore = store({ _state: 30 }); // store states local
  
  	return (
  		<>
  			<Activity_DataTree />
  		</>
  	);
  };
  
  export default view(LeftPane);
  