Change time signature

Go to the song you would like to edit, tap/click on the Edit icon.

Tap/click on the measure where you'd like to change time signature.

Choose the Time Signature you wish to add from the dropdown menu.

At the bottom of the screen, tap on Symbols and it will show all the available Symbols including Time Signatures

in the Editor panel choose the desired time signature from the drop down menu in the editor panel

Tap the big button indicating the current time signature – i.e 4/4