How to change name tab titles

How to change name "Welcome to Joomla Drug Store" on Tab?

Go to shop->shop->vendor tab there is field Shop Name. By default that title is formed like "Welcome to " + value of that field.

If you want to change "Welcome to " part you can do it in:

language\en-GB\en-GB.com_virtuemart.ini

COM_VIRTUEMART_DESCRIPTION="Welcome to"

I already change the language\en-GB\en-GB.com_virtuemart.ini

COM_VIRTUEMART_DESCRIPTION="Welcome to"

but at the shop name it can appear when I rename it.

please try to say that in some other words. What did you do, did you changed second part of message in vm admin?

sorry I have changed COM_VIRTUEMART_DESCRIPTION="Welcome to"
to "Produk" but it still appear as "Welcome to"

It's that 100% , you are missing something.

so line is now:

COM_VIRTUEMART_DESCRIPTION="Produk"

if don use English as language you are maybe changing wrong file:

language\xx-XX\xx-XX.com_virtuemart.ini


xx-XX\xx-XX change to your language