Moving traps on the app

I am having trouble movng traps to a new location on the app, the two icons shown at the bottom of the map a cross and a cog on the left, used to show two other symbols which took you to be to shift location,but they do not show anymore, it works sometimes. I there another way to do this.

kia ora I have pasted the help doc that has instructions for moving installations on the mobile phone app for you. I hope this helps