Listed below are SAP standard transaction codes in in Project System (under Financials area):
Planning

CJ40 - Change Overall values - Cost in WBS
CJ41 - Display Overall values - Cost in WBS
KP04 - Set Planner Profile - Cost in WBS
CJR2 - Change Cost and Activity Inputs - Cost in WBS
CJR3 - Display Cost and Activity Inputs - [...]

Listed below are SAP standard transaction codes in Resources (under Project System Module):
Evaluation

CM01 - Load - Work Center Overview
CM02 - Orders - Work Center Overview
CM03 - Pool - Work Center Overview
CM04 - Backlog - Work Center Overview
CM05 - Overload - Work Center Overview
CM07 - Variable
CM50 - Work Center View - Extended Evaluation
CM51 - Individual Capacity [...]

Listed below are SAP standard transaction codes Material (under Project System Module):
Planning

CN33 - Bill of Material Transfer
NWTM - Monitoring Dates
MD51 - MRP Project
MD50 - MRP Sales Order
MD04 - Stock/Requirements List

MRP List

MD05 - Individual Display
MD06 - Collective Display
MDLD - Print

Requirements Groupting

GRM4 - Assign WBS Elements Individually
GRM3 - Assign WBS Elements Using List
GRM1 - Display Assigned WBS [...]

Listed below are the SAP standard transaction codes in Information System Section (under Project System module):
Structures

CN41 - Structure Overview
CN41N - Project Structure Overview
CN42N - Project Definitions
CN43N - WBS Elements
CN46N - Networks
CN47N - Activities
CN45N - Orders
CN54N - Sales and Distribution Documents
CN55N - Sales Document Items
CN49N - Relationships
CN53N - Milestones
CN51N - Production Resources and Tools

Enhanced Individual Overviews

CN42 [...]