This asset is a custom input system using keycodes you can use it in any script very easily without assigning the Input Manager script
using static functions makes every thing easy
you also change the keycodes for every action you have at Runtime directly from UI with an example scene to showcase it to you
you have a bool to lock a specific action at specific time
you can check the test build that I've made
https://drive.google.com/open?id=1nhI_cuN0_0rJ7gaIoSMCftXWQfliEx9e
