Query data from unstructured text file (*.txt)

You should have "Split Column by Positions" - this is a very old Split transformation and RS should have it.

If not, the Table.SplitColumn is surely available even if not via the UI. 

= Table.SplitColumn(#"Filtered Rows", "Image", Splitter.SplitTextByPositions({4, 9, 20}), {"Image.1", "Image.2", "Image.3"})

That is splitting the table #"Filtered Rows" (the previous step) column [Image] into 3 new columns (Image.1/2/3) at postions 4, 9, and 20. 

With that info you can manually create your step if that menu option isn't there.

Hi DAXRichArd 

Try selecting the column first. In the PBI RS the ribbon changes quite a bit depending on the context.

Kind regards,

JB