Colas to close to each other?

You can always try to pull them apart using string. They do not need much space but the main concern is proper airflow. Proper airflow can also be achieved by thinning out some leaves. A combination of pulling apart the branches and thinning out the leaves will give you the results you are looking for. This should be a very low stress event so you should not see negative impact when done properly. Just be mindful not to pull a branch too much this late because they are very stiff and prone to breaking. Hope this helps.