Lyrics: Different number of syllables in different verses

In my pop-song lead sheets I often have small differences from verse to verse in the number of syllables assigned to a melody note or notes. I leave it to the singer (usually me) to work it out. In the file Syllables.png (attached) the first verse has the lyric "In" set to the single eighth-note in the melody. In the second verse, the same eighth-note covers three syllables, "And if you". If I enter spaces between the words, Musescore will move to the next note. So I keep the three words together by separating them with periods. This is an OK workaround, but I'd prefer to be able to use spaces without forcing a move to the next note. Is there any way to accomplish this? If not, please consider this a feature request for what could be called a "non-advancing space". This corresponds to the "non-breaking space" which in Microsoft Word forces words to remain in the same line rather than breaking between two lines. It would be handy to have a keystroke like Control-Space to generate a non-advancing space.