Hi there, if you know the brick number you want to have added, then you can request them here: http://mecabricks.com/en/forum/topic/50.

could someone add these i had to make a replacement for the nxt motor
https://rebrickable.com/parts/53787/electric-motor-nxt/
https://rebrickable.com/parts/40918/technic-linear-actuator-with-dark-bluish-gray-ends-long/
https://rebrickable.com/parts/61904/technic-axle-and-pin-connector-block-4-x-3-x-2-12-linear-actuator-holder/
https://rebrickable.com/parts/61927a/technic-linear-actuator-with-dark-bluish-gray-ends-original-version/
https://rebrickable.com/parts/61927b/technic-linear-actuator-with-dark-bluish-gray-ends-improved-version/
https://rebrickable.com/parts/99455/electric-motor-medium-ev3-with-white-case/
https://rebrickable.com/parts/58121/electric-power-functions-xl-motor-6-x-5-x-6-with-dark-bluish-gray-bottom-and-20cm-wire/
https://rebrickable.com/parts/99498/electric-power-functions-servo-motor-with-dark-bluish-gray-bottom/
https://rebrickable.com/parts/99499/electric-power-functions-large-motor-with-dark-bluish-gray-bottom/
https://rebrickable.com/parts/58123b/electric-power-functions-ir-receiver-with-v2-print/
https://rebrickable.com/parts/99455/electric-motor-medium-ev3-with-white-case/
https://rebrickable.com/parts/95658/electric-motor-large-ev3-with-white-case/

sorry i forgot about the brick link
here it is
also i added more to the list

https://www.bricklink.com/v2/catalog/catalogitem.page?S=9842-1&name=NXT%20Servo%20Motor&category=%5BMindstorms%5D%5BNXT%5D#T😛

https://www.bricklink.com/v2/catalog/catalogitem.page?P=95658&name=Electric,%20Motor%20EV3,%20Large&category=%5BElectric,%20Motor%5D#T😛&C😮

https://www.bricklink.com/v2/catalog/catalogitem.page?P=99455&name=Electric,%20Motor%20EV3,%20Medium&category=%5BElectric,%20Motor%5D#T😛&C😮

https://www.bricklink.com/v2/catalog/catalogitem.page?P=95646c01&name=Mindstorms%20EV3%20-%20Complete%20Brick&category=%5BElectric,%20Programmable%5D#T😛&C😮

https://www.bricklink.com/v2/catalog/catalogitem.page?P=61927c01&name=Technic%20Linear%20Actuator%20with%20Dark%20Bluish%20Gray%20Ends&category=%5BTechnic%5D#T😛

https://www.bricklink.com/v2/catalog/catalogitem.page?P=40918c01&name=Technic%20Linear%20Actuator%20Long%20with%20Dark%20Bluish%20Gray%20Ends&category=%5BTechnic%5D#T😛&C=86

https://www.bricklink.com/v2/catalog/catalogitem.page?P=61904&name=Technic,%20Axle%20and%20Pin%20Connector%20Block%204%20x%203%20x%202%201/2%20(Linear%20Actuator%20Holder)&category=%5BTechnic,%20Connector%5D#T😛&C=85

https://www.bricklink.com/v2/catalog/catalogitem.page?P=44352&name=Technic,%20Panel%20Fairing%20#T=C
https://www.bricklink.com/v2/catalog/catalogitem.page?P=44353&name=Technic,%20Panel%20Fairing%20#T=C&C=7

https://www.bricklink.com/v2/catalog/catalogitem.page?P=32534&name=Technic,%20Panel%20Fairing%20#T=C&C=7
https://www.bricklink.com/v2/catalog/catalogitem.page?P=32535&name=Technic,%20Panel%20Fairing%20#T=C&C=7

https://www.bricklink.com/v2/catalog/catalogitem.page?P=44350#T=C&C=7
https://www.bricklink.com/v2/catalog/catalogitem.page?P=44351#T😛&C=7

Please use the special forum to request parts.