Your so welcome.  Another I like lately (I've been using my guitar port on my laptop and I use Riffworks as the looper...

I haven't used my JM4 in a long time.

But another nice progression is.

Bb Maj7

Bb dom7

Eb Maj 7

D aug

G m7

C dom7

F  dom 9

Repeat

Another nice 3 chord is

Em9

Cmaj7

Am9

Not really beginner chords (sorry) but if you look them up - their well worth learning as they'll sound so much cooler than basic open chords.

If you want to do really basic stuff....  think of progression in  1-4-5  pattern

works like this

Scale

A B C D E F G

1  2 3  4 5 6  7

Would be a progression of  1-4-5  which would be  A D and E

To find another just start on another note and start at one again.

C D E F G A B

1  2 3  4 5  6 7

1-4-5  would be a  C F G   progression.

play these like this...  strum  chords  1 1 1 1 4 4 4 4 1 1 1 1 5 5 5 5

repeat

so could be  C C C C F F F F C C C C G G G G

or

A A A A D D D D A A A A E E E E

that's about as easy as it gets.    Use the scale to solo over in the sale of the first chord.   C F G  (solo in C maj scale or easier - C maj pentatonic.

If doing  Am Dm Em - use A minor pentatonic.

Look in you tube some lessons on the pentatonic boxes (5 of them) really you can do a lot with just box 1.  (especially if you also learn box 2) so you can go between them.   Box  5 - 1 - 2   is very useful using the 2 lowest strings of box 5 - all all 6 strings of box 1 and the highest 3 strings of box 2.

the 1-4-5  chord progression (technically writen as  I IV V  (via roman numerals) is whats known as the blues progression.  If someone says lets JAM - blues in A    - everyone jamming knows   A D E  (as the  I  IV  V )  chords and will all be able to jam together on the fly. typically using 12 bars.

On the JM4 - look up the included track called  THRILL  or something like that - it's  "the thrill is gone" by BB KING. It uses this simple  I  IV  V

blues progression. And will be the easiest (it's also slow) to solo over.  The title menu will tell you the key it's in.  (I forget) as you can play it in any key...  It might say  "Bb"or something or Might be Am  so solo in what it says...    A minor pentatonic or what ever key the title display says it's in.

If it's still to fast, use the temp/speed features of the JM4 to slow it down to learning tempo...  peck away at the pentatonic (5 note) box 1 while playing the   THRILL (no thrill?) I forget what they call it. (they can't  use the real name (the thrill is gone) for copyright reasons.  So they change up the background track a bit and give it a similar name - so we all really know what it is.