i take excel example. @ moment, every time when user wants use add-in, need go insert ==> add-ins , choose add-in. either take pane or content add-in appears. if manifest xml of add-in has add-in commands, users can launch add-in via menu or ribbon.
if user des-actives task pane, closes , re-open excel, need go insert ==> add-ins again , on... tedious.
is possible set add-in loaded default (either developers or users)? example, each time user opens excel, see item in menu or ribbon (or task pane activated) launch add-in.
while ribbon-button feature mentioned softtimur , eric 1 solution problem, potential solution (depending on business model) may use template:
you can create .xlsx document , insert add-in task pane manually, share document others, automatically see open task pane when open document. 1 strategy post template document online , provide links elsewhere.
