I was not able to reproduce the behaviour that you are experiencing but I assume you are asking about modifying the query timeout value. In that case, I would make use of the local configuration page of the Design Studio in order to configure the timeout values in Design Studio.
I would make use of the following URL syntax to access the configuration option:
Once logged in to the local configuration page I would click on the **Configuration -> Connection options** to configure the Query timeout value.
You could take a look at the section [Design Studio Preferences](https://community.denodo.com/docs/html/browse/8.0/en/vdp/administration/starting_virtual_dataport/starting_the_design_studio/design_studio_preferences) of the Virtual DataPort Administration Guide for more details.
Hope this helps!