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Custom Connector UI default view

Below is the snippet of simplified Custom Connector code.




It has one required and one optional parameter (which is a record) consisting of three “sub-parameters”.

The UI looks like




Preferable – since second parameter is optional – would be that this UI opens initially (not the one above):




In this case the user who is interested in providing values for First, Second, and Third parameter would click on the arrow.


Is it possible? Any help on how to set it up will be greatly appreciated!


Community Support
Community Support

Hi @VladJ ,

Based on my research, it seems impossible to change such interaction settings. I also hope that other more knowledgeable developers will correct my response.
You can submit this idea here:
Welcome to Microsoft Fabric Ideas

Best Regards,

Community Support Team


If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly.
If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly --  How to provide sample data in the Power BI Forum -- China Power BI User Group

Hi Gao,

After further research, this certainly is possible. Take a look at the Oracle Custom connector UI:



And - after clicking on "Advanced Options":

Oracle 2.jpg

One more question. Next Oracle screen has a button:

Oracle 3.jpg

It seems also be undocumented feature. How can this be achieved?

Thank you!

The Oracle connector is not extension-based meaning that it wasn't created with the Power Query SDK.


It is possible to add an "Options" record that showcases things as an "advanced" section. We don't have any documentation for it at the moment, but I'm working internally on changing that.


For questions related to the Power Query SDK, please feel free to post those in our GitHub repo:

microsoft/vscode-powerquery-sdk: Power Query Connector Development SDK for VS Code (

Thank you, @v-cgao-msft ! 


I will submit the idea.


Fellow Connectors developers, did anybody manage to overcome it?




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