this is few short cuts what we came to know from satish...and what i learnt in just last few days...
-> Ctrl+Alt+Shift+M - to see the folds in the model if folds are there in model then it disables the baking process in fluid simulation
->H key - to hide the selected object or selected vertices or phases or edges.
->Alt+H - to unhide the object
-> From INLIST AND MATERIALS we can give name to the selcted group of vertices.
-> Shift+G - To select the vertices in the same plan or surface or of same area.
-> Ctrl and + key - if there is a ring of vertices is selected than if we want to select the adjacent ring for this use CTRL and + key is very useful instead of selecting individual vertices
-> Ctrl and - key - same as previous one but this time to it used to deselct adjacent set of vertices.
-> Alt + B - it enables axis like we have in border select tool (B key) and use of this short cut is also in the similler way...just select the part of the object and press Enter and the selcted part will hide and we can see the unside part of the object basically this shortcut is sueful to see the cross section of the object.
-> Shift +B - To select the part of object which we want Render without actually rendering the entire object...
-> Propotional falloff tool whish used drag a single point from mesh with influence of adjacent vertices to use this toll first turn on propotional edit button from editing panel and than we can see a new button of falloff. There are many fall of available like smooth , sphere, root ,sharp, sphere Falloff . after turning on Propotional edit button , select any of Falloff and selct one vertex and pree Bkey twice and drag the mouse...after adjusting the falloff press left mouse button or Enter key. In this if we want to increase or decrease circle of influence than scroll middle mouse button.
-> L key - It used to select the phases and it can be used in vertex or in edge mode also... just take your mouse pointer on the phase and press L key the phaces which are attached to current mesh all will get selected.
->Y key - When a set vertises is selected and we want separate that part of object from the actual mesh for this press Y key.
-> In MESH TOOLS there is button for REMOVE DOUBLE is given which we using with W key and beside that button there are two more panel are given as THRESHHOLD and LIMIT in this by changing the value of THRESHHOLD and LIMIT we can increase the range of REMOVE DOUBLE TOOL.
-> To draw the phase normal tool is availble in MESH TOOLS AND MORE .Draw normal after enabling this tool all the phase normal will be visible...and above this tool one panel is given Nsize to increase or decrease size of normal...and below Draw normal button Draw vnormal button is there to draw the VERTEX NORMAL.