When I select a file to copy or move to another folder.
When I right click the folder to paste to, if I don't do it quickly enough the folder contents expand down. This is of course nice but not always what I want. There appears to be a short delay before this happens. Can the delay be extended or can the action be switched off altogether ?
I simply use mouse say to copy a file somewhere, then right click the destination folder, then usually before I can select paste into the destination folder, the destination folder expands displaying all items. This expanding is what I wish to disable, or extend the time it takes to expand, if either is possible.
Hover-to-select is also called single-click mode. You'd know if you were using it, so don't worry about it if it doesn't seem familiar.
Outside of that mode, AFAIK right-clicking shouldn't expand a folder unless the click is actually on the expansion arrow (on the left of the icon and folder name).
That shouldn't expand them, assuming we're talking about the File Display.
Is Preferences / File Displays / Mouse / Single click to open an item (hover to select) on or off? (Try turning it off it it's on.)
If we are talking about right-clicking folders in the Folder Tree instead of the File Display, the tree has an option to expand the selected folder, and right-clicking will select the folder, so it could also be that.