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(Sorry for the late answer, I didn't get any notification o_O)
Thank you, no it's not really possible currently, but I'll try to make this...
Fixed a bug allowing users to put items in an inventory using Shift + Click
MinusKube updated SmartInvs - Advanced Inventory API with a new update entry:
SmartInvs 1.1.3 - Inventory Fix
Read the rest of this update entry...
It just works by reopening the closed inventory :p