Help with F1 function for Help

[PhilOfPerth]

If you highlight just the word on its own and nothing else, the F1 will still work. I think this also works with stuff like "PRINT USING"

Hi Spriggsy.
That's what I thought was supposed to happen, but it doesn't. As I said earlier, 

If I use the Tab function in my programme, eg Tab(10), then  select the keyword Tab and press f1 for Help, it gets ignored, but if I insert a space between Tab and (  - which the IDE removes later- I get the explanation as expected.
But with other non-spaced functions, like left$(  (which are also ignored until a space is inserted), if I insert a space I'm offered a choice of explanation for the $ sign or for String, neither of which is what I need. This also happens with Mid$( and Left$( and others.