SCEP Client

Hi all

I’m trying to set up the SCEP client on RouterOS v.6.1 but can’t set up the field “store-name”:
when I add the client I’m asked to enter a “store-name” and no matter what I enter I get the following -

failure: At least one field specifying certificate name must be set!

What I’m doing wrong? and is there step-by-step HowTO by SCEP Client setup?
Thanks

PS: This answer has minimum info - which field, what certificate I have to enter - it is not clear.

Specify any filed like common-name, key-size etc.

/certificate scep client> add
name: 1
server: 1.2.3.4
path: df
store-name: rt-chtgr-gw1
failure: At least one field specifying certificate name must be set!

What did I miss? I have to install self-signed cert on device?