If I am reading your question correctly, you want to know how to get the system to supply Jasper and Lyons Locations from the SPS-Main Inventory?
You would need to adjust the Replenishment System on your SKUs for Jasper and Lyons. Currently, they are set for Purchase and Prod. Order, which is why you are getting those suggestions. When you want to supply from another Location, you would use a Replenishment System of "Transfer". This will require you first setup a Transfer Route from STS-Main to Jasper and another from SPS-Main to Lyons.
Once the SKUs are adjusted the worksheet will give you the suggestion to create Transfer Orders to supply those Locations from SPS-Main. This will cause demand at your SPS-Main Location, so I strongly encourage you setup a SKU for that Location as well as define the appropriate Replenishment System for how the Item is supplied.
As you get further in your testing of the MRP capabilities, I would encourage you to reach out to your BC partner for assistance. The MRP works very well, but it is data dependent. Little things such as a missing SKU, incorrect Replenishment System, or improper Planning parameters can all throw off the results.
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Best Regards,
Ben Baxter
Accent Software Inc