Prior to Version 05.70.04-00
The check box is named as Auto Select on Sale Return is present in Configuration Module > Warehouse tab, as shown in Figure 1.0.
With Effect from Version 05.70.04-00
The check box is re-named as Auto Select Lot on Partial Sale Return in Configuration module > Warehouse tab, as shown in Figure 2.0.
For more information on Selecting Lot for Non-serial Sell Items, click here.