How do I have MuseScore continue notes in bass clef thats are input in treble clef?

Question

I am trying to input this:

But in MuseScore, I get this:

The note will not become a continuation of the already played notes in the treble clef.

Why not?

edit

This question is already answered, but to conclude the solution, I need to add a beam between an eight note and a sixteenth note. What I got now is this.

It would be more pleasant looking and like the original if that beam is there.

edit 2

I got another excellent answer. By selecting the first 16th note, going to beam properties (in the accordion to the left) and selecting this kind of beam property

I get this result

Now, how do I have all stems pointing upwards?

I tried to use the inspector to the right, selecting each of the notes (the dot part) and selecting stem direction up.

Without being able to change the stem direction.

Selecting the stems themselves gives me no direction setting in the inspector.

edit 3

I got a comment that I should double click the beam and then select one note and then move that note.

After double clicking the beam:

After clicking a note once:

(no visual feedback that I clicked the note)

After trying to click it again

The feedback that I double clicked the beam has dissapeared. I have no idea how to continue.

Answer 1

We call this “cross-staff notation” if this helps you in future searches. The steps:

1. Write all necessary pitches in one staff. In your case, write all upstem notes in the upper staff.
2. Now select the note that needs to be moved.
3. Then hit Ctrl-Shift-Direction (on Mac it's Command-Shift-Direction), where “Direction” is the up or down arrow depending on where you want the pitch(es) to move. In your case, you’ll be shifting these down, so hit Ctrl-Shift-↓.

Tips on any necessary beaming adjustments are available on MuseScore's website.

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Edit Addressing OP's Edits

In order to change the entire beamed group to be upstem notes, you must:

1. Doubleclick the beam.
2. Select one of the square nodes that appears on either side of the beam. (Nodes, not notes!)
3. Move the selected node up or down to match the desired beaming.

Answer 2

Select the first 16th notes, go to "Beam Properties" and double-click the second option. Should take care of you. By the way, MuseScore has its own forums that are more adapted to back-and-forth problem-solving like this.