Filter a table from the datahub?

[ReadTheIron]

I used to get my data by downloading it from a web interface into Excel, then loading it into PowerBI. Recently I was given permission to access the underlying dataset. I now have a live connection to the dataset with the storage mode set to DirectQuery.

The full data set is much larger than I need for the report I'm creating. Let's say that in the table, the field RecordType contains the values "Problem" and "Solution" and I only want the Problem records. Is there a way to filter the entire table for the Problem RecordType? The table doesn't appear in PowerQuery when I click transform Data.

I'm not at all familiar with DirectQuery or with data sources more complex than loading an Excel file - a basic-level explanation would be much appreciated!