To use this macro in the Keyran program, first set the activation to the desired key. Next, you need to turn off vertical synchronization so that the weapon does not shoot from the bottom up. 

When you are near the shelters, the macro automatically activates the bipods on your weapon, which reduces the recoil. However, it is worth considering that in this case the macro does not work correctly and the trunk will shift down. Therefore, it is recommended not to go close to shelters or disable the macro to avoid unwanted effects.