title: custom filter ag grid react
body: <p>I was trying to implement a custom DropDown filter in ag grid using React.
  The link I followed is <a href="https://www.ag-grid.com/javascript-grid-filter-component/" rel="nofollow noreferrer">link</a></p>
  
  <p>I was able to create the filter, however the filter doesnot appear by default. As a user, we need to click the 3 arrow icon next to the column header and then the filter appears. </p>
  
  <p>Is there a way to display the custom filter dropDown by default? </p>