Numeric Field at Features and Attributes

[userpap]

Hello,

This my problem:

When i want to create a numeric feature or attribute that i want it to be recognised by filters, i can't just give it a customized value (because then filters won't recognise the value). So i have to create values one by one (for example 1,2,3,4,5.....). This costs me a lot of time and a lot of times i have to create a value like 1.6, 2.2 etc.  

So i would like to ask if anyone knows any module or any other way so i can select a number from a numeric field (something like the field input type="number") (backoffice->product creation).

Btw i have Prestashop 1.7.3.2.

Thank you in advance