1) To automate GI posting(mvt 261) on component, you can try backflush.
Backflushing with confirmationof the production order
With this kind of stock removal, the components are already at the production location. These are physically used up during the production process, but the consumption is not posted until the consumption quantity is known, that is to say after the order has been confirmed. You do not need to enter any goods movements in Inventory Management for these components.
The production storage bin of the materials consumed is defined in the production order. The system reduces the material quantity in the production storage bin without creating a TR or a TO.
Quoted from help.sap.com
2) Automatic TO creation for replenishment
Apart from scheduling report RLAUTA10 as background job, you may try the following alternatives.
a) In OPKP, assign "1" or "2" to WM Request (V_TCO43-FLG_WM_REL). This setting take effect when production order is released. Replenishment TO should be created upon production order release.
b) In case you use pick parts method, you can flag "TO Creation" checkbox on LP10's selection screen.