The video provided was about version 1.9.x of moodle. Code has changed since then ... it's the same process in the video, just what one finds in looking at the source or the course page, the variables to the label are not right next to one another. Thus adjust and continue to seek the the ID number of the label in the course.
Could search for the title you gave the label ...
So you gave the label a title of some sort ... text ... what did you call it and is that text visible in viewing course page?
Do you have FireFox and under the tools menu of FF, an option to 'view source'?
If so, do that.
Source will be a lot of html. Do a 'find' while viewing the page source.
Try to find the line that had what you called the label.
You are looking for the ID number of that label.
Alt ... do a find and this time look for the resource type... search for "activity label"
That should find line(s) that contains the following:
"activity label modtype_label " and after that along the line an id # ... *like* "module-4"
Use that *ID number* (just the number) in url you have to construct/make in the URL line of a new tabbed window
**Something like ** (you have to change things inbetween []' in example provided):
https://[yoursite]/course/modedit.php?update=[idnumberoflabel]&return=0&sr=0
If you get the wrong ID number, cancel ... and try the next id number you found if the course page has multiple label resources.
'SoS', Ken