Hi,
I would like to learn how to change time signature on BIAB. I don't read music but I need to make backing tracks and am struggling to get the right feel on some songs, one of them is "Crazy Little Thing Called Love" by Queen.

I think it changes from 4/4 to 6/4 and back. Tried to change the number of beats in a bar in the bar setting but it won't let me.

This is what I am using:

****** Song Summary *************
Title: 09 Crazy Little Thing Called Love
File:09 Crazy Little Thing Called Love.SGU
Key=D , Tempo 155, Length (m:s)=2:48
No intro. 107 bar chorus, from bar 1 to bar 107. Repeat x1 chorus
Fadeout ending bars =12.
No Melody
No Soloist track.
Song is saved with Volume, Pan, Reverb, Chorus, Bank0,
Song is saved with bar changes for Tempo,Volume Changes,
Style is _BOOG40S.STY (40s Boogie Piano Swing)

RealTracks in style: ~540:Bass, Electric, Pop Sw 165
RealTracks in style: 1990:Piano, Acoustic, Rhythm 40s Boogie Sw 160
RealTracks in song: ~373:Guitar, Acoustic, Strumming Hank Sw 165
RealDrums [in style:NashvilleShuffle^13-a:Snare, HiHat , b:Snare, Ride

*******************

I am using this song for learning BIAB, so, until I learn how to use a mix of time signatures I cannot progress any further.
My aim is to create backing tracks for my band.

I appreciate any help, thanks.