Question: I have a cluster DB, and i am trying to attach DB files, it doesn't let me navigate to any other drive except for DB? Is there something wrong that i am doing? 

Example, if my DB is created in `F:\`, i am allowed to attach only to mdf files from `F:\`

[EDIT/ SOLUTION]
I found the solution on my own, I will need to add another storage to the cluster, if it is a mount point then assign a drive letter, and add dependency on the cluster resource, this would then allow me to attach to the DB as the drive letter is visible in the sql server management studio

Answer: 
I found the solution on my own, I will need to add another storage to the cluster, if it is a mount point then assign a drive letter, and add dependency on the cluster resource, this would then allow me to attach to the DB as the drive letter is visible in the sql server management studio
Is the other drive a local drive on one of the nodes? If so, you can't use that for storing a clustered DB because in the event of a failover the new owner won't be able to bring the database back online.

The storage for your databases needs to be a target visible to all the nodes in the cluster, and also needs to be part of the failover group that holds your SQL instance.