@sw-tool-designer ,
Glad it worked for you. Just so you know, that first screenshot you showed was also showing it docked, and it just needed re-sizing, like you did in step 5.
Because when it’s undocked, it looks different:
undocked
ef82fc2f-108a-4c89-bdeb-da21b8e49e7e-image.png
docked
32759d40-bf2c-446f-a57c-05d06d214650-image.png
Do you notice how the window-closing red X (undocked) changed into the much smaller docked-panel X? That’s how I am certain you were docked properly before.
Another thing to keep in mind when docking: if you are moving from TOP docking to RIGHT docking, you might try to drag your panel over to the upper-right half of the screen (the red arrow is meant to simulate your mouse cursor), and you want it to dock to the right (the magenta box):
2a57e1fc-2494-4fdb-b4fe-c1dd0d72c70f-image.png
Instead, it never shows the magenta box, and refuses to dock. But what you really have to do is go down into the editor portion of the window to drag the panel there, and it will show the docking box as indicated by the magenta:
bd08ed3e-b727-4988-8f42-d4897c5a41a6-image.png
Then, when you let go, it will vertically re-grow the editor panel and project panel both to the full height you expect:
aa147161-33fe-46a7-8a75-9e3f5fb706cb-image.png
When dragging the Project Panel (or other dockable panel), if you are having trouble, try to make sure you are going relative to the editor panel(s) – you cannot dock the panel to a new edge if your cursor when trying to hit that edge is still inside the original panel location. (If you already have a different panel on the destination edge, then just line up the cursor with the title bar of that existing panel.)