MFAssignR: in Recal function allow user to input own RecalSeries, not only the automatically selected ones

[KristinaGomoryova]

We should add a description to the Galaxy Training of how to choose the series manually, meaning selecting the rows from the table by hand. This can be done either using the text editor and just rearranging the rows, or it can be done via sorting or filtering.

Maybe there is even a tool which allows you to select specific rows from a table?