무엇을 한다고 설치다. 무엇을 한다며(or 한다면서) 설치다. The verb 설치다 is shorten word of the word 설레발치다 or 설레발을 치다 The noun 설레발 comes from the verb 설레다. The verb 설레다 may mean "(one's heart or mind) to be/feel very excited or nervous" or "to move from one side to another without stopping, like a boisterous child " or "to move continuously in a particular direction, like waves" The noun 설레발 means "the action of doing (something) busily and noisily in an excited state " Thus, the verb 설치다 or 설레발을 치다 means "to be impatient/unruly or "to be restless" In addtion, another meaing of the verb 설치다 comes from the verb "설다". The verb "설다" means "to be unripe or to be half-done" or "do not sleep well at night"