Making spaces.

Spaces are called rests. A rest can be regarded as a note that has no sound. This isn't some sort of Zen statement; rests really are important to making music flow well and sound good. The easiest way is to create a new score with a suitable number of bars (or measures), set the time signature and the key signature. Then click on the first rest in the first bar and, thereafter, use the keyboard to enter the notes. Use your right hand on the number pad to set the duration of the note (4 for quaver, 5 for crotchet, 6 for minim etc.) and then enter the name of the note (a, b, c, d, etc.) using your left hand. To enter a rest you just enter a number to indicate its duration and then enter 0 (zero) to denote a rest rather than a pitched note. Rests can also be dotted to prolong their duration by a half, just as notes can so, for example:

4 0 gives a quaver rest
5 . (dot) 0 gives a dotted crotchet rest
6 0 gives a minim rest.

Then just continue with entering the notes.

In your example the first bar would be:

5 d 4 . f 3 g 5 a 4 0 (to give your rest) 3 a a (no need to enter 3 for the second note here as, by default, the last selected duration is remembered).

Now, your piece is made slightly more difficult by the fact that there are more than one note per chord so to complete the first bar of the top stave you go back to the beginning and use the [Shift] key:

Click on the first note (a D crotchet) and press [Shift]-c
Press the right arrow key to move to the next note
Press [Shift]-d, right arrow, [Shift]-e, right arrow, [Shift]-f

Now, you can just skip the space with the right-arrow key until the next chord is selected and you continue with [Shift]-f, right-arrow, [Shift]-f, right-arrow etc.

Once you get used to doing in this way you can enter all the notes for each chord (by placing the first note and then by using the [Shift] key to enter the others) before moving on to the next chord but I certainly find it easier to stick to one note per chord until I have got the basics of the timing of a tune correct. Similarly for lyrics -you could enter then as you enter each chord but it's easier to do the music first and then go back and enter the lyrics.