Hi Scott,
Re: Using random icons in LMJust to clarify, "Random Placement" refers only to how the icons are arranged on screen. The default setting is "Random," but if you find that your son is having difficulty with seeing randomly arranged icons (or as older children lose the ability to subitize), you can change the Icon Placement setting to "Grid" mode.
I believe what you are asking about is how LM randomly chooses an icon or icon set to use during the lesson.
Lessons in the LM Course are set to use a random icon set every time you play the lesson, and it may be coincidental that you usually get the default LM icons when you play your lessons.
It's not possible to make LM use specific icon sets by "priority" yet, but what you can do is set your Override Settings to quickly switch your lesson to the icons that you want to use.
Please have a look at this article for instructions on using the Override function:
http://support.brillkids.com/entries/20608263-how-to-change-playback-settings-for-all-little-math-lessonsYou'll need to select a specific "Icon Set" in the Override Settings window and avoid the "Random (each playback)" and "Random (each slide)" options. For "Icon Item" you may pick any of the "Random" options there so LM will use a random icon from your selected icon set.
This way you do not need to actually delete any of the Icon Sets you've downloaded or created. As for deleting the default icon sets, this is something that we do not advise because it may affect how LM works.
If you did end up deleting any default icon set, you can restore it by doing a Repair of Little Math (with the option to "Restore default content"). However, after doing this you need to re-import all of your custom icon / sound sets. You will not be charged points for re-downloading any premium file that you got before.
Re: Creating Icon SetsThere is no limit to the amount of icons you want to include in an Icon Set. The Icon Set preview only shows a few of the icons you've added, but that doesn't mean that you can't add 20 or more icons in your icon set.
To double-check that you've successfully added all the icons in your icon set, click on the small triangle to the left of your Icon Set's name and the list of icons in the set will be displayed.
Re: Random and Grid Icon PlacementRight now we don't have plans of having an option to use both Random and Grid.
Re: Recording new Sound SetsYou can access Easy Voice Recorder even outside of Little Reader, so you don't need to open LR to record anything you need for LM:
> From Start, go to All Programs
> Open "BrillKids," then "Little Reader" folder
> Select "Easy Voice Recorder"
Easy Voice Recorder does not allow you to record all the words you need in one recording session and then "chop up" the recording into individual files. What you can do instead is to record the numbers and symbols separately, and then add those files to your Sound Set.
If you are using a more advanced sound editing software (Adobe Audition, etc.), it is possible record everything in one go (with enough pauses in between words/sentences) and then save specific parts of the recording into separate files.
P.S.
Thank you for helping out too, MamaOfWill!