How to add dedicated enumeration (e.g. for formulas)

[IAmForcedToUseMSOffice]

Hi.

I want to add an automated enumerator of which's object can be used just anywhere.
E.g.

A TITLE
some text
Test 1: foo
Test 2: bar

ANOTHER TITLE
some text
Test 3: baz


Test 4: qux
Test 5: ...


So the number behind "Test" shall get increased automatically.
How do I do that? It shall be a unique enumerator that goes through the entire document (e.g. as used for enumerate formulas in professional documents)

Thanks for your inputs.