Feature Request: Queued inputs and activate use on hold

I often find myself in situations where, when using grenades and medkits, I get boned by having to wait for the animation to complete before I can begin using them, costing me valuable time in high pressure situations. If I could, I want to request input queueing so items start being used ASAP when holding primary fire for instance.

Additionally, supply use and item pickup could be greatly smoothened out if, when I walk up to them while holding use, the pickup action begins without needing to deliberately re-press use to begin the activation process.