In the new wikitext editor the edittools from the mediawiki:edittools in not appearing below the edit window in Tamil wikisource. Hence it is very difficult to use the frequently used markups.
Topic on 2017 wikitext editor/Feedback
edit tools not appearing in edit window
@Balajijagadesh, you may use the special characters menu for most purposes. It opens by clicking on the Omega sign. It can stay open as long as you wish. It has a Symbols section. Furthermore, you can actually customise it at the wiki level: this means you can put at the top of it a series of symbols, characters etc. that are locally very used. You can learn how to do that at VisualEditor/Special characters. You can see how it looks like on other wikis from that page, I added 3 screenshots there for you. Hope this helps.
Thanks for the detailed reply. In addition to the symbols, the edittools page may also contain wikicodes, templates, etc like it is in this page https://ta.wikisource.org/s/1uu5 It would be very useful if there is way to add these codes in the edit box with less number of clicks. in the usual editor when we click edit the edittools are there right below the edit box. hence it is easy to add them in a single click. And also it is clearly visible to every one. But if all these are hidden in a omega symbol in the 2017 wikitext editor, then editor is going to be very difficult.
There isn't currently a way to display frequently used templates. (I added a comment here though https://phabricator.wikimedia.org/T96710#3758967, FWIW.)
All of that could be added to the Special Characters menu, although I would encourage you to add only the things that are truly most needed (i.e., nothing that's already available from another button or through Insert > Template).
You only have to click the Omega symbol once. It stays open until you close it. Also, it stays visible at the top of the screen, so you don't have to keep scrolling up and down to see it.