App. Launcher mishap {Plasma 5}

[bad sector]

Trying to compensate for the severe shortfalls
in kde5 I put an AppsMenu widget on my left vertical
panel to replace what should still be available
BUT NO LONGER IS i.e. the old QuickAccess thingie.

Thinking that the AppsMenu widget could also be
used for other progs like my own scripts I placed
an extra one on the panel. But the mods which began
with deleting what was there by default are now in effect
and every instance of AppsMenu launcher is useless.

How can I recover the stock default without manually
rebuilding the whole thing, so that in the absence
of other options I might at least incorporate MY
script launchers in one of those?

[bad sector]

- right click panel icon of App-Menu now mangled
- Edit Applications
- Menu Edit > Restotre to System Menu