Question re Keys in Blueprint Files

[Crestone]

Anyone know the purpose of the keys in the blueprint files? I have pasted an example below. This one happens to be from a Scenario Properties file, but they will appear in loco bin files, Preload files and metadata files. Anywhere locos or consists are identified.

The key line seems to at times interfere with renaming the loco/train as it appears in the Scenario game grid. For this reason, I tend to delete them - so far without any noticeable effect on anything.

A lot of times, the line has something like RS_SD40_TEXT. Other times, a random alpha-numeric entry will appear as below. Is it possible the unique alpha-numerics are some sort of identifier tor AI purposes?

<LocoName>
<Localisation-cUserLocalisedString>
<English d:type="cDeltaString">UP Weathered EMD SD40-2 [3660-3700 KUJU]</English>
<French d:type="cDeltaString"></French>
<Italian d:type="cDeltaString"></Italian>
<German d:type="cDeltaString"></German>
<Spanish d:type="cDeltaString"></Spanish>
<Dutch d:type="cDeltaString"></Dutch>
<Polish d:type="cDeltaString"></Polish>
<Russian d:type="cDeltaString"></Russian>
<Other/>
[highlight=]<Key d:type="cDeltaString">9b92ee73-ca16-43a0-8f0c-ea4a77dee537</Key>[/highlight]
</Localisation-cUserLocalisedString>

[Crestone]

Well, I have a partial response to my own question. Thru my testing, I can't see that the key lines do a whole lot.

There is an exception. On some of the older routes, the driven consists are defined in the Scenarios.bin instead of the Scenario Properties.xml. Then, the key line is used so that the two files can "find" each other. This can be overcome by redefining the driven consist in the Scenario Properties.xml as it is done today on current routes.

Again, I only bring this topic up for those who like (or would like to) customize the Scenario grids within the game to reflect a more descriptive title for the driven consist/train. Drives me nuts to see "EMD F9" 40 different times in the menu and cover three different models and 9 different railroads.

Jeff