[PROPOSAL] Datasource selection changes from radio to select

[Musk]

Hello ALL:


    I suggest changing the previous method of selecting data sources 
into drop-down ones. Otherwise, once more data sources are added, the whole 
page will look bloated


    Change the way you selected the data source before


    



    Change the way you selected the data source after



    


Best Regards


wuchunfu
2020-07-05