Overwriting button click to draw a different object

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Hi, so on my current setup I am using [react-mapbox-gl ](https://github.com/alex3165/react-mapbox-gl/blob/master/docs/API.md)with mapbox-gl-draw and [mapbox-gl-draw-circle](https://github.com/iamanvesh/mapbox-gl-draw-circle).

I am able to reroute the `draw_marker` or `draw_line_string` modes to draw circles when they are clicked, but the `draw_polygon` button remains routed to `draw_circle`, no matter where I try to overwrite it. I believe this is due to `draw_circle` using `draw_polygon` to draw the circle on the map.

For example, when I click the marker button, I made it draw a circle on the map. However, when I click the polygon button, it still draws a circle on the map instead of a regular polygon.

**So, here's my question:** Is it possible to overwrite a buttons for different drawing functionality? (EX: The marker button draws a circle and the polygon button draws a polygon, or the polygon button draws a circle and the line button draws a polygon, etc...)

Thanks!

Start with the react-mapbox-gl API documentation and the mapbox-gl-draw-circle integration described in the issue. Reproduce the button routing and inspect how the circle mode relies on polygon drawing; done should allow the selected controls to invoke distinct drawing behaviors without one mode unexpectedly replacing another.

Written by the indexing model from the issue text.