What do M1-M3 keys do?
1077156
The keyboard can switch between three sets of key/macro mappings to the G-function keys. M1 selects the first set, M2 the second, etc. On the 510 that means you can have 3 x 18 macro keys from which to choose.
1940767
It depends on your computer. Most times, it's the F10 key but a search of your computer would be best as mine is F9 or F1
9509
Key code? They are a simple key lock. Unless u are referring to the key style .
44776
I'm not sure because i don't use the function key very much contact Logitech sorry i could't help.
953004
You need a working key (most recent in use). not necessarily the original key.
263586
Do not know; unit only worked for a week, then it would not work even with a key. I sent it back. Piece of junk.
1403132
It can be set to any normal keys....so you can set it to do what ever you need IF you have a secondary program that allows you to, lets say, ctrl+U for volume up, then you set the footboard up switch to ctrl+up.
841347
Yes. Macros are modified via the software (or use of the M1-3 and MR keys) and saved to the internal memory.
1741858
Screen lock and Sys Rq are ancient keys from the days of CRTs that are no longer used/needed. I wouldn't worry about not knowing what a key does. If a program you use requires the use of some oddball key, the program documentation will mention the key.
1809800
Yes. They are the superscript "function" keys above the regular number keys. Basically, you have to press fn+1 for F1, etc.
1063578
If you press the star key on the top of the keyboard below the silver 3 key you may find some info. The 5 silver keys 1-5 are programmable, I believe. The sliding black key between letters G and H enlarges or shrinks items on the screen. The others that have icons on them are straight forward. I don't know what the silver arrows by the wrist rest do. I was very unhappy that it came without a manual.
2013773
It may seem like it but actually it's all just one piece of metal that goes from the numpad to the tap/caps/shift key. The macro keys are placed into a different piece, that one is made from a hard plastic (the same from the back of the keyboard).
179786
M4, M5, M6, M8, M9, M10, M12, M14, M16, M18. M14-M18 are hollow (security-style). Drive sizes are 1/4, 3/8, 1/2 depending on head size. This is looking at my kit (not the internet).
355891
I don't really know but, it should. I got that keyboard and within a week, trashed it. It wanted to create it's own key functions while using it. None of the keys responded as they were supposed to. Ie..., the 'F' was some times, the 'H' key, none of them functioned properly at all. I should have sent it back for a refund but, it was cheap and I got what I paid for.
868463
All you need to do is match the codes. In the instructions says something about it. If I remember you need to press the lock key for a few seconds while you switch the M1 buttons. I still need to do it myself. I havent been able to do it because my unit doesn't have a signal.
1869610
I don't know the mechanism but the keys work fine --and felt about right after I raised the back feet of the KB with a pair of rubber bumpers. My only problem is that the legends on the keys wear off too quickly. I tried white-on-black Dymo labels but the adhesive isn't good enough. I had to add a drop of super-glue.
1779970
I have never used this function but I do not see a key that is designated as an F Lock key. Research tells me it should be locate above the Backspace key but there is no such key on this keyboard.