Glad you enjoyed it, I had to allow the trash bags to work that way since I ran out of flags haha.
In terms of endings:
After trading an Umbrella, you have to meet the guy in Evlock Park (far East) and deny taking over his job at the Purple Shades club, this will lead you to endings 1, 2 and 3. (Ending 2 is my personal favorite)
For endings 4,5,6 they all occur at Lonwi Dam depending on where you go and what you have. If you enter the Tar Fields (Requires Master Keycode) then you'll have access to endings 5,6. If you enter past the blast doors you'll access ending 4.