Version 1.0 does not provide this flexibility. I justed started work on version 1.1 and am adding additional functionality. Your 10+ example doesn’t quite fit what I’m thinking though. If someone were to order 100 products, would you really want to still cal the price at 12.50 total shipping. Here’s what I’m currently considering for the new instructions, which hopefully also makes configuration clearer.
Example 1 is the current default functionality.
Example 2 is a custom configuration that only requires 2 tiers, which is close but not quite a perfect fit for your proposal.
Example 3 is a custom configuration you might consider with version 1.1.
Example 1: Default 4-Tier (all tiers enabled; suitable for USPS flat-rate)
Tier|Max Qty| Cost
—-+——-+——
1 | 2 |$ 5.95
2 | 4 |$12.65
3 | 10 |$15.90
4 | 15 |$17.90
+ | each |$ 1.12
such that cost for 20 items = $17.90 + 5 x $1.12
Example 2: Custom 2-Tier (tiers 3 and 4 disabled)
Tier|Max Qty| Cost
—-+——-+——
1 | 10 |$ 7.00
2 | 40 |$21.00
3 | disabled
4 | disabled
+ | each |$ 3.50
such that cost for 50 items = $21.00 + 10 x $3.50
Example 3: Custom 2-Tier (tiers 3 and 4 disabled)
Tier|Max Qty| Cost
—-+——-+——
1 | 1 |$ 6.50 <- your base
2 | 4 |$ 8.50 <- your 2-4 (base+$2.00)
3 | 8 |$12.50 <- your 5-8 (base+$2.00+$4.0, assuming I understand your amts)
4 | 100 |$18.50 <- your 10+, but with a cap of 100
+ | each |$ 0.10 <- a small incremental cost for additional items
Actually, you can probably get what you want with version 1.0 given that you
have a way to utilize each of the current 4 tiers to meet your needs.
