This is not possible in appwarp cloud. Please see
"Note that turns are allotted in a fixed order and can’t be altered from the client. If your game requires assigning turns in variable manner (such as repeating or skipping certain turns etc.) or variable turn time for each player, then the ready-made cloud APIs are not the way to go. Its best to either build your custom solution using a combination of chat/update messages and room properties on the cloud. Alternatively, you can use our on-premise AppWarpS2 solution which allows customization and extension of the server side as well.