Add Greek characteres [solved]

Hello

Can some extra characters be added to the Greek keyboard, please:

Ɣ Ⲇ Ⲉ ϵ Ɛ Ͱ ϴ ϖ ☧ Ϲ ϲ Ʊ Ꞷ

Some symbols are similar to Latin symbols. For example, Ϲ (sigma) is similar to Latin C, but the search function doesn't work.  Also, Ⲉ is similar to the Cyrillic Є, but different.

These are used in many Roman provincial coins, for example, this one:

N#376329

Thank you

Hello Brünhild,
Vero added these letters to the virtual keyboard and made the mentioned letters equivalent for search.

Thank you Vero!

Can the following letters also be added to the Greek keyboard (for use with Byzantine regnal years)

See the year lines here for example:  N#299109

thanks in advance :)

ↅ  Ч

Hello,

ↅ  and Ч have been added.

Thank you :)