Mine is the new-ish D610BT printer. Keyboard and PC connected input.
But I think all the computer connected P-Touch (might?) use the same Windows software.
Think my editor is version 6.3.1

The lightning bolt is under the symbols drop-down button option on the menu bar on the top of the screen. Have to scroll several rows down to find it.
It’s under the “sign” symbol set.

There might be one in some symbol character font. But I don’t remember seeing one.
I’m sure there must be a bunch of them out there someplace.
All the Best,
Jeff

From the printers keyboard - which I never use - There is a symbol button. Then arrow key to find the symbol you want. It’s built into this printers symbol set. I just looked.

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