Good, that's saved him a search for them.
But in that case I don't get the need for any learning - or teaching!

Now that you say that, I remember there is now a touch screen button in the TV device for InputHDMI1, and it works........but there is no such button on the oem remote. But, does that help my situation, because I'm getting a little lost with this......sorry.

Now we're getting there - if it's got one it'll have them all!
Go to Devices Tab> TV> Settings> Adjust Inputs> Method 2

This should bring you a list of "Source Inputs" and with any luck InputHDMI1 will be there along with its necessary companions.
Now go back to the TV Activity, do "Customise buttons" and allocate the command you need to a button of your choice - a spare hard one, or a virtual one on the LCD.

A key thing to grasp is - it does not necessarily matter what is NOT on the OEM. Manufacturers of OEM remotes dont always put all the commands on it. Once somebody finds out what they are they can be programmed on a learning device.

Don't worry, we've all been there!

Alan

Which is why we who eventually find discrete codes are actually better off than we were before!
I still don't get this about learning though - we find the codes and get Logi to load them up.

He needs to teach the discrete "InputHDMI1" command from his TV device to his DVD device for the trick explained in post# 12 above.

Yes, good trick, but I was going back to the method in #8.
Instead of learning the command Logi could copy it from his TV to his DVD.

Well, when I got to the list of "Source Inputs" there is an HDMI, not InputHDMI1, but am I wrong in assuming they are the same thing? The ability to rename them is there, but I don't know if that helps here or what, or completely irrelevant. So, If I do end up going to the TV activity, and allocate the command to a button of my choice, the only real advantage is that it will be right there in front of me when the DVD player boots up, as opposed to going to the TV device, and going through the pages to find the one with InputHDMI1, correct? It still won't do it automatically with the activity, because at this point I have no way to delay that command for 30 seconds. Hope I have all this correct.

The easiest way to find out is, in device mode, test the input commands available and see if they take you to where you want to be

You said in post 17 "there is now a touch screen button in the TV device for InputHDMI1"
If that was correct it must be in that list of "Source Inputs"!
If you do have it then you're right in the way it would work in my manual method.
However jlet's trick in post 12 would do it automatically; it's just a lot more complicated to arrange.

Yeah, checked again, and there is no InputHDMI1 in the list of "Source Inputs"......just HDMI. I'd have to assume they are the same, but maybe I'm wrong. The InputHDMI1 touchscreen button in the TV device does change the input to HDMI though, I confirmed that.

But without another learning remote, that will never happen, correct?

The HDMI is the label name that is associated with the "InputHDMI1" command on the next page (of the Adjust Input Method 2). The label can be anything you want. Don't confuse label names with command names. Note: The label names in the input configuration is used by the activity setup wizard. You don't map a command to a key here. Use the Activity Customize Buttons to map device commands to keys.

Note 1: When you map a key in an activity, the "InputHDMI1" command should be available from the drop-down list. If the key is a soft (labelled) key, then you can label the key to anything you want. This label has nothing to do with the input configuration labels.

Note 2: Since you don't have another learning remote, then why not use the trick I proposed in post #9 above. This trick is a very good compromise since the 30 seconds delay penalty will only apply when you use the DVD activity(ies).

I didn't take you far enough - as jlet says go one step further:
Devices Tab> TV> Settings> Adjust Inputs> Method 2> Next
Now you get the list of Source inputs and a column next to it headed Remote button. In that list should appear the InputHDMI1 that you've already seen on the remote's screen.
You need its code for all the methods suggested so far.
For jlet's in #12 you're right that it will never happen without another remote.
#9 is the next best choice, though its equivalent in my system turned out to be unreliable and had to be replaced with my #6 as explained in#8!
On second thoughts though, about the learning remote, you might be able to get Logi to copy over the command from your TV device directly to the DVD device, cutting out that "middleman"....

Well, I'll try the one from post # 9.....maybe I'll get lucky, and it will work just fine. Just to be sure, I know I want to end up here

and I'm assuming this is what I want. Also, I don't get how to do three 10 second commands.