"It is not convenient to go there from here."
Is it grammatically correct to say 去那儿从这儿不方便? I'll report it and see what happens....
It's not correct to have 从这儿 after 去那儿 - adverbial phrases usually have to go before the verb phrases they modify. The main exception is adverbial phrases that indicate time duration, i.e. a phrase that indicates how long the action in the verb phrase is taking/has taken/will take.