SmartKey  தமிழ்
Step 1
What is SmartKey ? 
Pressing the same key again to get another letter option is SmartKey Multi-tapping . 
Press kk , ssss, ddddd                                  க க்ஷ,     ச ஸ ஷ ஸ்ரீ,   ட த     
To repeat the letter use Shift key, example: enn Shift N  என்ன (or enn q nn)
் is added when we press Spacebar. Write கலம and press Spacebar to get கலம் 
Step 2
What is Phonetic Keyboard ?
keyboard.jpg
In Phonetic Keyboard all letters have been placed on the keys, according to phonetic sound. 
Click 'Show Keyboard'. Bring cursor on a letter to see its typing key combination.
Type     N, Shift N, Ctrl Shift N, Alt N, Alt Shift N                                        ந ண ன ங ஞ
Click a letter on the keyboard. 
Click 'Show Full-screen'
Step 3
How to add vowel-sign ?
AEIOU    Ka, kee, kii, koo.., kuu..                       கா, கெ கே கை, கி கீ, கொ கோ கௌ …
X              kxxx                                                              க் கஂ
Step 4
How to write half-letter ?
Q                         kqk, kql, kqm                  க்க க்ல க்ம
Step 5
Where is Halant ?
Q  or   X                                  Halant(்)  joins letters         enqn     என்ன   
Step 6
How to use typing with Multi-tappping ?
vnnnkqkm                                                                   வணக்கம் 
konnntiruk Shift K i  rrattu                                   கொணடிருக்கிறது
peyr                                                                              பெயர்  
murugann                                                                 முருகான் 
nal Shift L ipatiyak                                                 நால்லபாடியாக                                                
iruk Shift Ki rraiii                                                    இருக்கிறாய் 
ttiruvallar                                                                 திருவாளார் 
ul Shift L tu                                                              உள்ளடு                                                   
parqkqk                                                                   பார்க்க
Step 7
How to start and stop Predictive Text ?
Click 'Show Predictive Text' on the Toolbar.
Click ' Hide Predictive Text'  on the Toolbar.
Step 8
How to use Predictive Text ?
To write திறுவன்டபுறம், write part of word திறுவ and press  Ctrl Space      keys 
together OR    Click a word on the Predictive Text.
After writing complete word press   Spacebar.
To add a new word to Predictive Text, write the word and press      Spacebar.
To remove a word from Predictive Text, click the word with Right-button of mouse.
Step 9
Where is Help ?
When we press a key, the letters typed by it are seen inside a yellow tooltip.
See Help Menu above
In the Toolbar above, click 'How to write' (This page)
Press F2 key  to write in English.  Again press F2 key  to write in தமிழ் 
SmartKey  Ctrl Q  (TYPING)
SmartKey Transliteration  Ctrl W
KBasic Unicode Ctrl E ( write in word / Social Media)  (TYPING)
Software reads the position of cursor on start-up, press Spacebar, before writing.
` symbol (Key above Tab key)