# `SF013` Parameterized tags
{bdg-ref-info}`output | both <output:both>`

The user shall be able to group and nest tags one level:
a tag can have a subtag with the syntax `group:subtag`.


:::{dropdown} Properties
:icon: note
:color: primary

**since:** `0.1.0`

:::
:::{dropdown} Tested by
:open: 
:icon: check-circle-fill
:color: success

[`TF011` Parameterizing tags](/tests/TF011)
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:::{dropdown} References
:icon: link
:color: secondary

__Relates to:__
[`SF007` Index requirements by tags](/requirements/SF007)

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__Comments__
:::{card} Antoine
:text-align: right

For now, only 1 nesting level is considered, so only the first `:` has a special meaning.
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