ここでは遠慮はいりません。

here (place physically close to the speaker, place pointed by the speaker while explaining); this place; these last (followed by a duration noun and a past sentence: time period before the present time of the speaker); these next ... (followed by a duration noun and a non past sentence: time period after the present time of the speaker); the next ...

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

reserve; constraint; restraint; modesty; diffidence; hesitation; holding back; discretion; tact; thoughtfulness; declining; refraining; forethought; foresight

to enter; to go into; to break into; to join; to enroll; to contain; to hold; to accommodate; to have (an income of); to get; to receive; to score