Use of the parallel gripper in simulation

[UPedrou]

Hi,
I have the OSS Cobotta with the parallel gripper and I am using it with ROS Melodic.
When using the real robot I do not have any problem controlling the gripper to pick and place items, but I need to be able to replicate these actions in simulation.
When using the robot in Gazebo I can not control the opening and closing of the gripper. In the changelog of the repository it is mentioned in the version 1.2.2- dev "the Gripper simulation is currently not supported".
I was wondering if there is any update on the gripper simulation? Or how can I simulate the opening or closing of the gripper?

Thanks